Everyone knows where babies come from: the sperm meets the egg. But to this rendezvous took place, the most active sperm must "run" to finish first, and the egg to Mature and emerge from the follicle. We have found that may affect this process.About what every woman should know, planning to become pregnant, about the factors that can cause lack of ovulation, we asked the expert Kamilova Dilorom Pulatova, obstetrician-gynecologist, K. M. N., doctor of the clinic "Mother and child".
The term "ovulation" comes from the Latin ovum - egg. Ovulation is the release of Mature, capable of fertilization of an egg from the ovarian follicle in which it Matures. Because ovulation and having a good Mature egg is the most important condition for pregnancy, this process interested physicians to assess the condition of the reproductive system. The absence of normal ovulation and prior to this, various hormonal disorders - frequent cause of infertility in women.
Tests to assess ovulation
The ovulation is subjective signs when a woman feels discomfort in the lower abdomen in the middle of the menstrual cycle, coinciding with the period of ovulation, at the same time, you may experience slight bleeding from the genital tract, increases sexual desire. But for more specific information, it is best to use one of the following methods.
Measurement of basal (rectal) temperature
One of the most affordable methods that do not require any financial investments, besides buying a separate thermometer. However, it is not entirely accurate, as it requires strict compliance with a variety of conditions: sleep should be regular and long-lasting, temperature measurements are conducted in the morning at the same time, not getting up. Temperature is measured in the rectum. These temperature measurements are plotted on a graph, the vertical axis which indicates the temperature, and the horizontal axis shows the days of the menstrual cycle. The menstrual cycle is ovulatory when the difference t in the first and second phases of the cycle is not less than 0 and 3°C. the First phase is the period before ovulation, when the regular "classic" cycle in 28 days its length is 14 days. The second phase of the cycle - the remaining two weeks.
Test strips ovulation
More accurate is the method of determining the level of luteinizing hormone (LH), one of gonadotropins responsible for the normal function of the reproductive system in women. The level of this hormone increases significantly before ovulation, causing her. Preovulatory peak LH can be captured on certain days of the cycle in the urine, which uses a special test strip.
If the cycle is constant, then start doing the tests in about 17 days before the next menstrual period, as the phase of the yellow body (after ovulation) 12-16 days (average, usually 14). For example, if the standard cycle of the 28 days, the testing should start from the 11th day, and if 35 from the 18th. A positive test suggests that, on average across the 28 - 42 hours expected ovulation.
Dynamic ultrasound, determination of the level of progesterone
On ultrasound, you can see how the formation of a Mature dominant follicle in the ovary, followed by the release of an egg on this place formed the so-called luteum, which produces progesterone, contributing to the normal development of pregnancy. The level of this hormone can effectively judge ovulation.
Ovulation and age
The young women of reproductive age ovulatory are almost all menstrual cycles, lack of ovulation in 10-15% of cycles in a year is the norm. The General trend is: the older the woman, the less frequently ovulating, so at the age of 40 years it may occur not more than 4-6 times per year. But it's not just the absence of ovulation. Reduce the probability of pregnancy in women older than 40 years is associated not only with a decrease in the number of ovulatory cycles, but with a decrease in the quality of oocytes, which affects the quality of the embryos and the probability of occurrence and a normal pregnancy.
If pregnancy does not occur
It is normal for a period of 1-1 .5 years of regular sex life. In the absence of pregnancy after this period in young women of reproductive age diagnosed: the infertility of the couple and recommend examined both spouses to clarify the possible reasons for the lack of pregnancy. Women older than 35 years are recommended to begin screening much earlier - in the absence of pregnancy within 6 months. a regular sex life, not to lose time, because with age can deteriorate the function of the ovaries and eggs.
Factors affecting ovulation
Any reason
from environmental factors to different diets, receptions drugs - can be a cause of hormonal imbalance with the absence of ovulation. Regular frequent jet lag, long flights, a sharp change in the normal climatic conditions is also a source of stress to the body, which can alter the normal functioning of the reproductive system, fortunately, most of these violations transient.
Uncontrolled use of drugs for weight loss, fatigue hungeroften lead to persistent anovulation. An example is patients with anorexia, voluntarily refuse food, thereby putting yourself in a state of sudden exhaustion. The body clearly responds to the decrease in weight up to 45 kg or less, inhibiting the processes of normal functioning of the reproductive system. These women stop menstruation and ovulation.
Disorders of ovulation may be associated with different
hormonal disorders, a large part of which is due to genetic reasons. The absence of normal ovulation is accompanied by conditions such as polycystic ovary syndrome, hyperprolactinemia, thyroid gland, syndromes accompanied by elevated levels of male sex hormones, impaired sexual differentiation, have blurred over. Some of these States promising in terms of recovery ovulatory cycle and pregnancy, and other ovulation is not achievable. Therefore, the issue of the treatment of hormonal disorders and the choice of drugs is decided by the doctor.
Ovulation achieve correction of hormonal disorders and medication to stimulate ovulation. Used for this purpose is a large Arsenal of tools: from tablets to injectables. In the last decade, new drugs to stimulate ovulation, which contain the gonadotropins, obtained using the methods of genetic engineering that eliminates the presence of impurities. Their appearance has dramatically increased the efficiency of treatment of patients with endocrine disorders, both in terms of recovery ovulatory cycle and pregnancy.
Ovulation and sex of the child
To create a method based on the planning sexual contact against a known date of ovulation, American scientists Landran Shettles and David Rorvik of Harvard University has spent nearly half a century. The essence of the method is the following: empirically it was found that the sperm carrying the male Y-chromosome, more mobile than those that have the X chromosome, so they can reach the egg first. Getting into the acidic environment of the vagina, the Y-sperm cells lose their activity, so as to become weak and die quickly, opening the way for its slow, but more viable X-fellows. These scientists believed that the sperm with the X chromosome can survive in the fallopian tube waiting for ovulation a few days. The sperm with the Y chromosome detection. However, the closer the day of ovulation, the more alkaline become vaginal discharge, the higher the survival probability of the Y-sperm. Knowing the exact day of ovulation, you can try to increase the chances of certain sperm to participate in fertilization and, therefore, to plan baby gender specific.
To increase the probability of the birth of girls need to have sex at least 2-3 days prior to ovulation period. If you want a boy, then you should refrain from sex during the week before ovulation, and to engage in intimate contact on the day of ovulation or the day before.
Interestingly, there is a certain seasonality, which is confirmed by many observations. More girls are born in mid-spring, early summer, at the beginning and at the end of autumn and early winter. The boys are often hatch in January, February, March, may, August and October. Based on these observations, planning the time of conception, you can increase the probability of a birth of the child the "right" sex.
Source:
Woman.ru
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