home Calculators Signs of ovulation. The menstrual cycle is not always stable. Symptoms of ovulation include...

Signs of ovulation. The menstrual cycle is not always stable. Symptoms of ovulation include...

As you know, in the body of every healthy woman of childbearing age, a process such as ovulation occurs. Ovulation is the release of a mature egg from the ovary into fallopian tube. Ovulation usually occurs in the middle , and lasts about several days, after which, in the case of fertilization by a male sperm, the woman becomes pregnant, and if the egg is not fertilized, it “dies” and the woman begins menstruation. The ovulation cycle occurs according to the principle: “The longer the cycle, the later the ovulation.” But how can you correctly calculate your periods and the date of ovulation?

How to calculate your menstrual cycle and ovulation date?

It is believed that 4-5 days before ovulation and 1-3 after it are better days to conceive a child. Therefore, for some women this is a kind of “protection” from unwanted pregnancy, and for others who want to have a child, taking advantage of their chance at happiness.

Doctors usually call special ones, which are sold in regular pharmacies, the easiest way to calculate the day of ovulation. They must be done in the middle of the cycle, counting the first day of the cycle as the date of the start of menstruation. For example, if last menstruation began on October 15, then, starting from October 27-28, it is already worth starting to do these tests.

The principle of their “work” is the same as that of pregnancy tests - a woman dips a test strip into her morning urine and gets the result - tests must continue to be done until the second strip becomes as bright as the first. When both stripes become the same bright color- this means that ovulation has reached its peak, and it is important at this moment not to miss your chance.

The most budget-friendly, but also time-consuming way to calculate the ovulation cycle is to measure basal temperature. How to measure? Every morning, for at least three months, without getting out of bed, you must insert ordinary thermometer into the anus, and when the numbers after 36.5-37 degrees on it show from 37.1 to 37.5, it means the day of ovulation has arrived. This ancient method is most suitable for women with an already regular menstrual cycle, and is not suitable for very young girls and those women whose cycle is regulated by various oral contraceptives.

And finally, the ultrasound diagnostic technique. Experienced doctor An ultrasound, even on an old device, can easily determine the condition of the follicles in the ovary or the corpus luteum. However, it is not always possible to resort to this particular diagnosis.

The shortest cycles in women occur due to disorders hormonal levels, and average only 21-23 days. However, the longest ones - about 34 days - are also a kind of violation. Let's look at each menstrual cycle and ovulation cycle in detail.

The cycle is 22-23 days. When is ovulation?

Menstrual cycle, which is only 22-23 days, is considered the lower limit of normal in women, and is associated primarily with hormonal disorders or diseases of the pelvic organs that cause frequent bloody issues. But it also happens that for a woman this is a variant of the norm, however, it is not possible to conceive a child with such a short cycle, since for such a short time the embryo cannot fully form and attach to the wall of the uterus. With such a short cycle, ovulation usually occurs a few days after the end of menstruation.

Cycle 25 days. When is ovulation?

With a 25-day cycle, it is also difficult to get pregnant, since it takes about 14 days for the embryo to develop and attach. The day of ovulation in such a cycle should be counted as follows: 25 (duration of the entire cycle) - 14 (mid-cycle) = 11 (day of ovulation).

Ovulation in a 26-day cycle

If a woman with such a cycle wants to get pregnant, then she simply needs to measure basal temperature and buy tests, since “catching” the right moment is already more possible, but still difficult. However, you usually need to calculate the ovulation date using the same scheme. With a 26-day cycle, it occurs on days 14-16 of the cycle.

The menstrual cycle is 28 days. When is ovulation?

The menstrual cycle of 28 days is standard and most favorable for conception. U healthy women such a cycle indicates that they are ready for pregnancy. Usually the ovulation cycle in this situation does not have “jumps”, and strictly three days before and after ovulation, that is, from days 11 to 17, a woman can safely become pregnant.

The cycle is 29 days. When is ovulation?

A 29-day cycle is also considered normal, and ovulation can also occur from days 11 to 17 of the menstrual cycle.

The menstrual cycle is 30 days. When is ovulation?

With such a long cycle, just like with a very short one, it is difficult to track ovulation, but it is possible. You need to rely on your feelings from days 14 to 20 of the cycle, and when you feel an increase in libido, or when cravings begin colorless discharge from the vagina and will stretch the stomach - which means you can successfully conceive a child.

The cycle is 33-34 days. When is ovulation?

It is believed that with such a long cycle it is almost impossible to get pregnant, because there is too little time left for the development of the embryo. Ovulation in such a long cycle occurs approximately on days 20-25. Doctors unanimously say that this ovulation cycle needs to be corrected hormonal drugs. However, some women manage to “get” happy Days and conceive a baby.

Dear women! If you are planning a baby, then do not despair if your ovulation cycle is too long or too short. You just need to see a doctor who will correct this phenomenon with appropriate treatment, and everything should work out for you!

How long ovulation lasts is important for women planning a baby to know. This period is characterized by the rupture of the follicle and the release of a fully mature female cage ready for fertilization.

Ovulation is the maturation and release of an egg. At this moment, the woman’s body is ready for conception. When having sexual intercourse with a man, there is every chance of fertilization.

In other words, these are several days in the middle of the menstrual cycle when a woman who is in reproductive age, has the ability to get pregnant.

When planning a child, it is important to know not only how to determine favorable days, but also when ovulation begins and how many days it lasts.

There is a standard: this is approximately two weeks before the start of menstruation. However, much depends on the duration of the cycle and its regularity. This method of determination is more suitable for women who have a 28-day regular cycle. For those whose cycle exceeds 28 days and is 35 days, for example, the period before the release of the egg increases accordingly.

At irregular cycle Other ways that can help:

When the egg matures, a serious hormonal changes. As a result, the amount of hormones in the blood changes, as well as basal temperature (BT). Measuring it daily and charting it allows you to accurately determine the days suitable for conception.

When the female reproductive cell matures, there is first a decrease and then sharp increase temperature by a few tenths of a degree. The periods before the egg is released are characterized by lower temperatures.

The highest accuracy in determining days favorable for conception is using a test and ultrasound procedure. However, they are more expensive in contrast to drawing up a BT schedule.

How long does ovulation last?

For successful planning During pregnancy, you should know how long ovulation lasts in women. This period accounts for about 16-32 hours.

Indicate the numbers more precisely, how long ovulation lasts. Everything here is individual. And it is worth noting that 16-32 hours is the preparation period, and the rupture of the follicle and the release of the finished egg occurs in a matter of minutes.

In addition to be used special methods definition, a woman can feel it by characteristic features if you listen carefully to your body.

the following:

noticeable increase in sexual desire;
pain in the lower abdomen (more on the left or right, depending on in which ovary the egg matures);
transparent mucous discharge (streaks of blood may appear).

No less important is the question of how many hours the egg lives. Her life span and fertilization ability range from 12 to 48 hours. Then it is either fertilized in the presence of sperm, or comes out with menstrual blood. After mucus, cessation vaginal discharge and other symptoms can indicate the cessation of ovulation.

The lifespan of male reproductive organs is up to 72 hours. That's why favorable time For conception, 48 hours are considered before and after the release of the female reproductive cell.

What does it depend on?

The presence of regular maturation of a female cell, once per menstrual cycle, indicates reproductive health girls and their ability to become pregnant.

A variant of the norm is the absence of maturation of a female cell for one month a year or the maturation of two eggs in one menstrual cycle.

How much days go by ovulation during a 28-day cycle or when longer duration, is influenced by a number of factors:

hormonal balance in a woman’s body;
taking hormonal contraception;
antibacterial therapy;
bad habits;
way of life in general.

Changes in the process of maturation of the reproductive cell or its absence are possible after artificial termination of pregnancy, after childbirth, as well as upon the onset of premenopause.

If there is no ovulation for several cycles, you need to visit a doctor and undergo an examination. Non-ripening of the egg may indicate the presence of hormonal or gynecological problems.

Early and late maturation of the egg

Early ovulation is characterized by the release of a female cell, ready for fertilization, 7-9 days after menstruation.

Late occurs approximately 10 or 8 days before the start of menstruation.

In some cases, early or late maturation of the female reproductive cell is not a deviation from the norm. The reasons vary from person to person and may include the following:

infectious diseases;
chronic diseases;
stressful situations;
diets;
hormonal disbalance;
redundant physical activity or lack thereof.

The question about the duration and period of maturation of the reproductive cell, the possibility of conception, is often asked by young women in order to become pregnant. The maturation of the egg is considered an important indicator of the ability female body to reproduction. In order to achieve successful conception, a woman needs to determine the onset of ovulation and its duration.

Video about determining the day of ovulation

It just so happens that the reproductive function is activated in the girl’s body at the moment when she does not care about this function at all. Having just put the dolls aside, the girl is faced with a whole series of little-understood processes occurring in her body, which immediately begin to be heatedly discussed among her peers, with consultations from those who are older. And mothers in this situation do not always rise to the occasion, since they themselves are poorly versed in this topic.

So, let's figure out once and for all what happens to you every month, dear women, what is considered normal, what should alert you.

Most women answer a question about the length of their menstrual cycle with a similar phrase “about once a month, a couple of days earlier than the previous month”- this intricate phrase denotes the duration of the cycle of 28 days. This cycle length occurs in most healthy women, but does this mean that a shorter or longer cycle is a manifestation of pathology? No!

Recognized that a normal menstrual cycle can last from 21 to 35 days, that is, plus or minus a week from the average of 28 days. The duration of menstruation itself can normally range from 2 to 6 days, and the volume of blood lost should be no more than 80 ml. A longer cycle occurs among residents of the northern regions, a shorter cycle among those living in the southern regions, but this is not an absolute pattern.

Regularity is important in the menstrual cycle. That is, if a woman’s cycle is always 35-36 days, then this can be absolutely normal for her, but if it is either 26, then 35, then 21, this is not the norm. Thus, Irregularity can be considered a pathology(when menstruation comes at an uneven period of time), long cycle(more than 36 days) or short cycle(less than 21 days). In general, the menstrual cycle can vary greatly depending on the condition of the woman and the situation in which she finds herself.

However, different women lability of the menstrual cycle depending on external and internal factors can be different. For some, a little stress can already lead to a delay in menstruation, while for others, severe depression is not a reason for menstrual irregularities. One woman's menstrual cycle can match another's if they long time exist together. This is often seen on women's sports teams or when cohabitation in dorm. It is not entirely clear what explains this fact. All we can say is that menstrual cycle although there is a clear mechanism, but may vary significantly in a normal healthy woman and these changes are a reflection of the body’s reaction to external and internal factors.

The menstrual cycle is not always stable

Most irregular period– these are the first two years after the start of menstruation and three years before their end (menopause). Violations during these periods are due entirely physiological reasons, which we will talk about below.

Where do these numbers come from and why might they change?

The menstrual cycle is divided into three phases: menstruation, the first phase (follicular) and the second phase (luteal). Menstruation lasts on average 4 days. During this phase, the lining of the uterus (endometrium) is shed due to failure to become pregnant.

First phase lasts from the end of menstruation until ovulation, that is, on average until the 14th day of the cycle with a 28-day cycle (the days of the cycle are counted from the moment the menstruation begins).

This phase is characterized by the following events: several follicles begin to grow in the ovaries (from birth, the ovaries contain a lot of small vesicles (follicles) containing eggs). During their growth, these follicles secrete estrogens (female sexual hormones) into the blood, under the influence of which the mucous membrane (endometrium) grows in the uterus.

Shortly before the 14th day of the cycle, all follicles except one stop growing and regress, and one grows to an average of 20 mm and bursts under the influence of special stimuli. This process is called ovulation. An egg emerges from the ruptured follicle and enters the fallopian tube, where it awaits the sperm. The edges of the ruptured follicle gather (like a flower closing for the night) and this formation is now called the “corpus luteum.”

Starts immediately after ovulation second phase of the cycle. It lasts from the moment of ovulation until the start of menstruation, that is, about 12-14 days. During this phase, the woman's body waits for the pregnancy to begin. In the ovary, the “corpus luteum” blossoms, formed from a burst follicle. corpus luteum grows into blood vessels and begins to secrete another female sexual hormone (progesterone) into the blood, which prepares the uterine mucosa for the attachment of a fertilized egg and the onset of pregnancy. If pregnancy does not occur, then a signal is sent to the corpus luteum and it curtails its work.

When the corpus luteum stops secreting progesterone, a signal is sent to the uterus, and it begins to reject the no longer needed endometrium. Menstruation begins.

With different cycle lengths, the duration of the phases is reduced - this means that one woman needs 10 days for the follicle to mature, while another needs 15-16.

Having understood what the menstrual cycle consists of, it is easy to understand what determines its duration normally and in the presence of pathology.

Why is it that at the very beginning everything is often unstable and then, after childbirth, it gets better?

The female reproductive system matures gradually, and being a complex mechanism, requires a setup period. The fact that a girl's first menstruation occurs does not mean that its system is mature and ready to fully operate(although for some, the menstrual cycle starts working correctly from the very beginning).

Functioning of women's reproductive system can best be compared to an orchestra, the harmonious play of all instruments of which creates the unique sound of a musical work - in our case regular menstrual cycle. Just as the instruments in an orchestra require a period of tuning, all components of the reproductive system need to agree with each other to understand and work together harmoniously. Such a rehearsal usually takes about 6 months - for some it is longer, for others it is shorter, and for others it may take longer.

Why do there be delays or do my periods start earlier?

Everything is very simple - if during the first phase of the cycle it is not possible to grow a full-fledged follicle, which could burst in the middle of the cycle (ovulation), then the second phase of the cycle, accordingly, does not begin (no ovulation - there is nothing to form the corpus luteum from). The first phase lasts a long time, until the uterine mucosa (endometrium), which has grown under the influence of estrogen, begins to be rejected on its own (like a pyramid of cubes collapses when it is stood too high). The cycle in this situation can last up to several months.

In this case, in the next cycle, ovulation may occur and the cycle will have a normal length. When such alternation occurs, they speak of an irregular menstrual cycle.

Another reason for delayed menstruation may be too long existence of the corpus luteum. As I noted above, it lives for about 10 days and then begins to curtail its work, since pregnancy has not occurred. But sometimes it happens that despite the fact that pregnancy has not occurred, the corpus luteum continues its work and menstruation does not occur, and occurs only when the corpus luteum finally decides to leave.

More earlier onset of menstruation This is usually due to the fact that the notorious corpus luteum, on the contrary, stops its work too early. This leads to more early start menstruation.

Remember how the orchestra sounds when it tunes its instruments - the same cacophony from the menstrual cycle is often observed at the beginning. The components of the reproductive system negotiate so that they can grow a follicle in 14 days, start the ovulation process, and maintain the functioning of the corpus luteum for at least 10 days. At the beginning, she does not succeed in all stages of this work and this is manifested by an irregular menstrual cycle.

But this adjustment can be seriously interfered with by the person himself. Nothing has such a negative impact on the development of the reproductive system as stress(intensive study, exams, unhappy love), reinforced sports training, extreme weight loss, frequent illnesses, smoking, alcohol and drugs. Against the backdrop of all of the above, quite often periods disappear and then you have to wait a long time for them. And the reason is very simple, I would say there is simple biological expediency in this - in extreme conditions life and when, for health reasons, a woman cannot bear healthy offspring - reproductive function turns off until better times. It’s not for nothing that during the war, most women stopped menstruating; this phenomenon was even given a special term “wartime amenorrhea.”

What to do about it?

Let me make it clear right away that I don’t take into account various diseases, I'm talking about some common menstrual cycle adjustment problems. Such cycle disorders are solved by taking hormonal contraception. Here we need to return again to the comparison with the orchestra. If the orchestra starts to go out of tune, you must stop playing completely, give the musicians a rest and start again. Hormonal contraception does just that. She turns off the reproductive system and “rests” the entire time she takes contraception. Then, after its cancellation, the system begins to work again and, as a rule, the cycle failures disappear.

Why does the cycle quite often become stable after childbirth, and sexuality flourishes?

The orchestra can rehearse as much as it wants, but it is finally played only when it performs its first concert from beginning to end. Pregnancy is the only purpose for which the reproductive system is designed in the body. Only after the first full pregnancy After childbirth and the period of breastfeeding, the reproductive system matures completely, since during this period all the functions provided by nature are realized. After pregnancy, a woman finally matures and all the not fully “unpacked” properties of the body finally begin to work in full force.

The reproductive system must be used for its intended purpose - this is important; menstruation is not a function of the reproductive system, but a monthly reminder that it exists at all and is still working.

Let's step beyond 30...

Time passes, the reproductive system, which on average is allotted to exist in working order for 38 years (from 13 to 51), instead of performing its function is limited only to regular menstruation.

For reference: on average, a woman experiences about 400 menstruation during her life (with 2 births) and loses about 32 liters of blood, while during reproductive behavior (pregnancy, childbirth, 3 years of breastfeeding, and only then 1-2 menstruation and pregnancy again ) there are about 40 menstruation periods.

In addition, as a woman ages, her history of various gynecological and common diseases , and all this begins to affect the state of the reproductive system and, therefore, is reflected in menstrual irregularities. Inflammation, abortion, gynecological operations, overweight or underweight, general chronic diseases may cause problems.

Menstrual irregularities in the form of delays or earlier onset of menstruation a couple of times a year can occur even in the absence of any pathology.

As a rule, this is due to climate change or other stresses on the body (illness, hard work, personal problems, etc.). All nervous professions can lead to either delays in menstruation, their earlier onset or complete cessation.

Every woman is different, so everyone's cycle will change differently depending on the type of stress response and the phase of the cycle in which it occurs. For most women nervous work have no effect on their menstrual cycle at all. Cycle disorders, especially if it was stable before, often make a woman think that something is wrong with her. Not in all cases you need to panic.

If you can clearly remember any negative events in the recent past that greatly shocked you, then most likely this is a one-time cycle disruption and there is nothing wrong with it. If there is no menstruation for a very long time (and the pregnancy test is negative), then you need to consult a doctor. If menstruation came earlier and does not end, this is also a reason to rush to see a gynecologist.

Sometimes Cyclic disorders can manifest as very frequent menstruation(several times a month). And there is no need to delay it - see a doctor immediately.
But if the regularity of the cycle disappears completely– this is also a reason to see a doctor.

Regularity– the main indicator of the normal functioning of the reproductive system. Sometimes it happens that a cycle had one duration and suddenly becomes shorter while maintaining its regularity. As a rule, this is due to the fact that the second phase of the cycle becomes shorter, as the corpus luteum begins to work less. Such changes are more often observed closer to 40 years. This is not a reason to panic, but simply a reflection that your reproductive system will change as you age, just like you.

Early menopause

This is one of the very common fears of women. In fact, this fear is exaggerated, since early menopause quite rare. It is mainly due to rare congenital diseases, rare systemic diseases, a consequence of treatment (chemotherapy, radiation therapy at oncological diseases) and other rare conditions. There are situations when, due to surgical intervention A woman's ovary or part of it is removed. Then menopause may occur earlier due to the fact that there is little tissue left in the ovaries that could support normal operation reproductive system.

Early menopause As a rule, it is manifested by the cessation of menstruation and the appearance of symptoms of insufficiency of female sex hormones (hot flashes, irritability, tearfulness, insomnia, etc.). There is no prevention of this disease.

Painful periods and PMS

For some reason it is generally accepted that bad feeling This is normal during menstruation. Presence of pain, nausea, migraines during menstruation is not normal. This condition painful menstruation called dysmenorrhea and requires treatment. Even if these phenomena are expressed insignificantly, they can and should be corrected.

Dysmenorrhea it happens like primary(most often in at a young age), when it is most likely due to simply the immaturity of the reproductive system and secondary– when it is a reflection of a number of serious gynecological diseases.

The same applies to premenstrual syndrome. In general, the widespread popularization of this syndrome allows women to attribute their sometimes not entirely adequate actions and behavior to manifestations of this syndrome. However, PMS is not a woman’s personality trait., which everyone has to put up with. PMS is a disease, which has incompletely studied causes, a whole list of symptoms and specific therapeutic measures. Manifestations of PMS can and should be corrected. Take monthly illness for granted in modern conditions wrong. If you have such problems, consult a doctor.

How it all ends

Decline of the reproductive system usually occurs in the same way as its formation. Menstruation becomes irregular and there is a tendency to be delayed. This is due to the same reasons as in the beginning.

The ovaries respond less well to stimuli from the brain. It is not possible to grow follicles that could reach ovulation - accordingly, the cycle is delayed. If ovulation occurs periodically, the resulting corpus luteum does not work well. Because of this, periods either start earlier or, on the contrary, are delayed for a long time. Eventually your periods will stop, and if you haven't had them for more than 6 months, you should see a doctor. Based hormonal tests and ultrasound can suggest the onset of menopause.

Sometimes there are cases when menstruation stops for a long time, and according to tests and ultrasound, the onset of menopause is expected. This can be especially frightening for young women. However, this may only be a temporary period, and menstruation may resume on its own, for example, after proper rest.

Thus, the myth that 28 days is the norm and everything that differs from this figure is pathology has been debunked. The main thing in the menstrual cycle is its regularity, and the duration of the cycle can fluctuate over a wide range.

And yet, there is a simple rule: if you regularly undergo preventive examinations with a gynecologist (at least once a year), if any violations appear, do not put off an “unpleasant” trip to the gynecologist - then you will almost never have serious gynecological problems.

Wanting to get pregnant, women try to find out as much as possible more information about conception. Fertilization is possible only during the most short stage menstrual cycle - ovulation phase. Depending on the number of days in a girl's cycle, the appropriate time for sperm to fertilize an egg varies. To choose the best day to conceive as accurately as possible, you need to know the time of onset and duration of ovulation.

To independently calculate the ovulation phase, you can measure basal temperature or conduct special testing, starting diagnostics a couple of days after the end of menstruation. To accurately determine the moment of release of the female gamete from the follicle, an ultrasound will be needed.

Early and late maturation of the egg

In most girls, the female cell matures by the middle of the menstrual cycle. It is generally accepted that with a cycle duration of 28 days, ovulation occurs on the 14th. But you shouldn't rely on this data. For conception to occur, sexual intercourse must occur within 3, maximum 5 days of the ovulation phase. If the release of the female gamete into the tube occurs earlier or later than the generally accepted period, sexual intercourse in the middle of the period cannot result in pregnancy.

How many days does ovulation last in women with a 26-day cycle?

According to generally accepted standards, with a cycle duration of 26 days, the ovulation period begins on the 12th day and ends on the 13-14th day. The following factors influence the time of oocyte release:

the amount of hormones in the body;
taking oral contraceptives;
bad habits;
Lifestyle.

At proper routine day, absence negative habits And healthy way life expectancy of ovulation increases slightly.

How long does ovulation last in a 28 day cycle?

The duration of the menstrual cycle of 28 days is considered standard and the most optimal for quick conception. Such menstrual period is given as an example in all textbooks.

According to standard indicators, ovulation, lasting 28 days, occurs exactly in the middle - on the 14th day. The process lasts from 16 to 32 hours, then the egg dies or is fertilized by a sperm and turns into a zygote.

How long does ovulation last in women with a 30-day cycle?

To find out how long ovulation takes in a 30-day cycle, you need to subtract 14 from 30. As a result of calculations, you can find out that, on average, with such a period, the oocyte leaves the follicle on the 16th day after the first day of menstruation. Ovulation lasts a minimum of 12 and a maximum of 48 hours (in extreme cases in rare cases) regardless of the duration of the process. Therefore, we can conclude that with a short cycle the probability of getting pregnant is higher, since ovulation occurs more often.

It is a mistaken belief that the longer it lasts, the longer the ovulation period.

The lifespan of a female cell is influenced by the level of hormones and the woman’s lifestyle. But, despite this, the oocyte is not able to function for more than 4 days. For most women, the ovulation phase lasts 1-2 days.

The maturation and release of the female gamete into the fallopian tube is necessary for conception. To get pregnant as quickly as possible, a woman needs to know on what days the oocyte leaves the ovary. Regardless of the length of the cycle, the female cell varies from 16 to 48 hours. To determine the phase favorable for conception, you need to listen to your own feelings, and to be reliable, you should measure your basal temperature, do ovulation tests, or undergo an ultrasound examination.

This is the process of releasing an egg for subsequent fertilization. The duration of this period differs for all women. This depends on the individual hormonal characteristics. Some external factors may also have an impact.

Normally, egg comes out in 13-15 days before the start of menstruation. In medicine, there are concepts of early and late ovulation. True, this definition is not general, but is suitable for characterizing a specific case.

Early is the maturation and release of the egg earlier than usual. For example, for a 28 day cycle Ovulation on days 9-11 is considered early. This is not a deviation.

This situation may arise for the following reasons:

In addition, fluctuations may occur throughout the year, for example, in the summer it will be earlier due to hot weather. Also early maturation oocytes occur after childbirth.

Late ovulation can be called when the egg is released later than usual. For example, with a 30 day cycle- for 20-21 days. Often this becomes the reason for the inability to get pregnant due to incorrect timing, as partners try to have sexual intercourse in the middle of the cycle.

Important! Sometimes this situation affects the incorrect determination of the timing of pregnancy.

The reasons for late ovulation are considered:

Excessive physical and mental stress.
Use of emergency contraception medications.
Infectious diseases.
Hormonal imbalances.
Recent childbirth or miscarriage, abortion.

Early and late ovulation- these are relative concepts and are not considered deviations.

How many days does it last for different cycles?

Ovulatory period occurs in everyone different time, depending on the cycle. There is still no consensus on how long it will last. Some doctors believe that just 24 hours, others lean towards digital 48 hours. The generally accepted duration is 24-36 hours.

The menstrual cycle consists of follicular, ovulatory and luteal phases. The follicular period lasts from the first for the cycle until the beginning of ovulation, ovulatory - this is the process of releasing an egg, then the luteal period begins, which lasts until the onset of menstruation.

After menstruation, they are present in the ovaries with a size of no more than 10 mm. Only one begins to ripen and increases to 20-25mm. This is the dominant follicle. When exposed to hormones - and luteal - the follicle bursts, the egg is released into abdominal cavity. After this, it enters the uterine tube. After fertilization, the cell moves through the tube to the uterus, where it becomes attached. If fertilization does not occur, the egg dies.

Considering lifespan of sperm in a woman’s body (5-7 days), the possibility of occurrence occurs a couple of days before release and persists for 24-36 hours after.

Duration of ovulation at:

28 day cycle - from 14 to 15 days.
29 day - from 15 to 16 days.
30 day - from 16 to 17 days.

What determines the duration of time?

The duration of the ovulatory phase depends on the following reasons:

Hormonal background.
Frequency of sexual intercourse.
Taking hormonal contraceptives.
Frequency of births, abortions, miscarriages.
Patient's age.

The main signs of the onset after menstruation

During exit the egg there is a violent surge of hormones, by which it can be determined that this has happened.

The woman has the following symptoms:

Increase in quantity. They become thicker and slimier.
Minor pain in the lower abdomen that goes away after ovulation.
General malaise: dizziness, weakness.

Important! If your health worsens significantly, you should consult a doctor. This may indicate inflammatory or tumor processes.

Accurate onset of ovulation can be determined by measuring basal temperature. From the end of your period and for 7-9 days, the temperature will be within 37 degrees.

Just before the release of the egg, it is observed sudden jump temperature by 0.5 degrees. If the temperature has not changed, then the cycle is considered anovulatory.

Easily determine the onset of ovulation using special tests. They are based on an increase in LH (luteinizing hormone) in the urine. Its concentration increases 24 hours before ovulation, which is confirmed by the appearance of two stripes. If one line is paler, then the release of the egg has not yet occurred, but will occur in the coming hours.

Important! The tests are highly accurate and eliminate the possibility of error.

Most precise method control is an ultrasound, which shows the maturation and rupture of the follicle.

Ovulation - natural process , in which an egg is released ready for fertilization. This process can be influenced by various factors, from hormonal imbalances until a banal change of weather or fatigue. It is considered normal for a woman to have one or two anovulatory cycles during the year. With age, their number increases.

Process duration, the time of occurrence is individual characteristics. Slight fluctuations in timing are considered normal and do not require treatment.