The menstrual cycle normally lasts 28-35 days, it is divided into phases. Ovulation - the release of the egg into the fallopian tube, it moves to the uterus, where it connects with the sperm. A small percentage of women of reproductive age experience double ovulation. In this article we will try to figure out what it is, why it occurs and how to get pregnant in this case.
What is double ovulation
In the absence of pathologies, only a single large follicle matures to a healthy state. Its formation occurs under the action of a high concentration of follicle-stimulating hormone, produced by the hypothalamus. When the amount of another substance, luteotropin, reaches its maximum value, the egg leaves the ovary.
There is little information in the medical literature about double ovulation, not enough attention is paid to this topic. Instead of one egg from one or both ovaries, 2-3 go out during the menstrual cycle, this phenomenon is rare, but not considered as a pathology. The double and triple process is caused by a natural change in the work of the endocrine glands, or is provoked by a targeted effect on them.
In what cases arises
Two ovulations in one cycle occur for artificially caused and natural reasons. The situation is possible if the girl has increased estrogen levels. They come from food, this is:
- decoctions of herbs (chamomile, licorice root, raspberry leaves), legumes,
- sunflower seeds
- some fruits and berries (apricot, raspberry, cherry),
- cereals (rye, wheat, barley).
Additional factors - nervous tension, rare sex. Significant stress provokes fluctuations in the level of estrogen, which affects the gap between cell maturation. This fact is confirmed by scientific research.
Causes and predisposing factors
Two eggs per cycle mature due to:
- preparing for IVF,
- genetic predisposition
- protection with OK.
Before the IVF procedure, the doctor often causes ovarian stimulation with a large dose of estrogen. Drug exposure leads to the formation of several eggs at once, which is necessary to increase the chance of success. The specialist of the clinic takes the material by puncture and selects the most viable elements.
Often the program of enhanced reproductive work is genetically incorporated (inherited). If the mother or grandmother had twins or twins, then this suggests a possible re-ovulation.
The principle of operation of oral contraceptives is based on taking hormones that block fertility. The auxiliary mechanism is the thickening of the cervical mucus, which makes it difficult for sperm to move to the destination. OK - it is mono - or combined drugs. After therapy against the background of the abolition of tablets, the release of 2-3 functional eggs, which is used for infertility, is likely.
How to suspect the onset of re-situation
Determine that there is a possibility of ovulation twice a month, it is easy on the manifestations:
- pulling pains in the lower abdomen to the right or left
- swelling of the mammary glands,
- increased vaginal discharge,
- increased sexual desire.
The pain is one-sided or bilateral, depending on the ovary from which the oocytes come out. If from both - the discomfort appears on the right and on the left at the same time, with the use of 1 ovary, it hurts only from this side.
On the eve of “Day X”, a woman notes that the volume of discharge has increased, they have become more viscous, similar to egg white. Staining in bloody or pink color - a signal of rupture of the follicle. Mucus is observed up to 3 days, insignificant in quantity, not accompanied by pain.
In addition to these symptoms, a thermometer helps determine the favorable day for conception. Evidence of this is an increase in basal temperature (in the rectum) on the eve and on the day of ovulation.
At the pharmacy, you can purchase a test, similar to diagnosing the determination of an increase in hCG. A reagent is applied to the strip, which, as the concentration of the active substance increases, shows a change in the color of the strip. Regular testing allows you to determine repeated ovulation.
Among instrumental methods informative ultrasound. It allows you to visualize the location of follicles, their size and number with the help of equipment.
What could be the difference between 2 episodes
Most often, both eggs consistently leave after a few hours or days, sometimes it takes up to 14 days. Then the gap between menarche episodes is reduced or the connection with the spermatozoon occurs.
The connection of cells is possible no later than 18 hours after the release of the egg. If a woman had a relationship with different partners per day, then there is a possibility that the twins will be from different fathers. Then on ultrasound, both fetuses differ in gestation.
The link between menarche and double process
Menstruation - rejection of the uterine epithelium, if fertilization has not occurred. In the last phase, the levels of progesterone and estrogen, which cause desquamation of the coat, fall. If the cycle is 28 days, the cell is released in the middle of the menstrual cycle.
With a small interval, up to a day, there is no delay in menstruation or changes in the usual state of health. If the difference stretches for 1-2 weeks, the menarche may be repeated after an appropriate time. This is manifested by the resumption of bleeding in 2-9 days after the previous time, or prolonged discharge, about 2 weeks.
Relationship to gestation
The probability of zygote formation depends on how long the cell release is repeated. If the difference is measured in hours or days, and both eggs attack spermatozoa, then an ultrasound scan will determine the heterosexual twins.
If there are 2 spermatozoa per egg cell, then identical eggs develop in it. If fertilization does not occur, menstruation occurs.
If during one of the ovulations the conception did occur and the fertilized egg entrenched in the uterus, the child can develop against the background of bleeding, and the girl does not know her position until the next period. If the interval between the release of oocytes is 1-2 weeks, then fertilization is characteristic only for one case, as a rule, repeated.
Does it need to be treated?
Therapy for the detection of double ovulation is not required, but information about the presence of the second egg is important when planning a pregnancy. The corresponding dates are marked in the calendar, which is used to determine the probable time of fertilization.
Increased activity of the reproductive system for several months in a row in the absence of a genetic predisposition is a signal of the need to investigate the state of the endocrine glands. If the level of hormones is disturbed, the specialist takes steps to eliminate the pathologies.
Why does two ovulations occur in one cycle? Modern science does not know exactly what factors influence this process. Most often, double ovulation is observed due to stimulation before IVF or in the presence of a genetic predisposition. In such a situation, it is quite possible to conceive a child, but it is necessary to more strongly listen to your body and to keep a schedule of basal temperature so that “Day X” does not catch you unawares.
How does this happen
In the first half of the menstrual cycle, the ovaries begin to mature in the ovaries, this occurs under the influence of a high concentration of follicle-stimulating hormone (FSH). Which one is destined to come out depends on the size of the follicle. The largest so-called dominant follicle first reaches the size of 2-2.5 cm, bursts and releases an egg cell into the abdominal cavity. This happens at the moment of maximum content in the blood of luteinizing hormone (LH).
It is believed that the remaining follicles, which at that moment grew to 1.5 cm and more, cease to develop. In that case, if the menstrual cycle is atypical (due to the impact on the body of external or internal factors), it is possible to re-raise the level of FSH and LH. As a result, one of the "unused" follicles grows again and a new mature egg appears from it and double ovulation occurs.
Signs of double ovulation
Double ovulation and its signs do not differ from the usual, when only one egg leaves the ovary. A woman may feel swelling and tenderness of the mammary glands, a slight pain in one or both ovaries. In addition, evidence of the onset of two ovulations in one cycle is:
- maximum basal temperature (progesterone effect),
- emergence from the vagina clear discharge resembling raw protein,
- strong sex drive.
In many women, before ovulation, under the influence of the hormone progesterone, not only the basal temperature rises, but the sensitivity of the taste and olfactory receptors is greatly exacerbated. Sometimes, before the onset of ovulation, there is flatulence and increased gas formation in the intestine. Symptoms can recur after a short time, most likely they will indicate that a second ovulation occurred during the cycle.
When re-ovulation occurs
Two ovulations can occur almost simultaneously. But more often between these events there is a short period of time - a few hours or days. This pause is necessary in order for the second dominant follicle to mature. If during this time there is no release of the second egg, then the increasing content of progesterone can cause the new ovulation to slow down.
Under natural conditions, this phenomenon occurs infrequently and its causes have not yet been thoroughly studied. But it is known for sure that the repeated rise in the level of LH comes at the moment of severe stress.
Stimulation of ovulation can be caused by sexual intercourse that occurred after a long break. Heredity is considered to be another factor that affects the frequency of double ovulations - it increases, if there are already facts of the appearance of multilingual twins along the female line.
Much more often, double ovulation is the result of preparation for in vitro fertilization and treatment of infertility. Hormonal agents that are used in this, can stimulate the maturation of several germ cells in one cycle. And if a woman succeeds in getting pregnant, then the probability of conceiving twins is high.
If double ovulation occurs almost simultaneously, the menstrual cycle remains stable. This is due to the fact that the duration of the remaining phases does not change. In addition, due to the absence of pronounced symptoms, many women do not even realize that they had two ovulations in their bodies.
Menstruation occurs as a result of rejection of the inner layer of the uterus - the endometrium while reducing the level of progesterone and estrogen. From the first day of bleeding begins a new cycle. From this point on, the eggs begin to mature. This continues until the middle of the menstrual cycle until ovulation occurs. If after that the egg cell does not fertilize, then a few days later, menstruation begins again.
Violation of the usual monthly schedule happens in cases when there is a long break between two ovulations (up to 7 days). After that, the bleeding lasts longer than usual. Or menstruation ends, and after a few days, bloody discharges reappear.
Diagnosis of double ovulation
To determine the onset of ovulation (both the first and second) a woman can, not only focusing on the duration of the cycle and their feelings. The most reliable information regarding the maturation of two dominant follicles at once can be given by ultrasound examination.
Basal temperature measurement is also informative. However, to find out if double ovulation has occurred, you will have to measure rectal temperature several times during the day. But this method may have no effect if very little time elapsed between the release of two eggs.
Convenient means for determining ovulation, including a double - test that responds to the content of LH, which can be bought at the pharmacy. The two strips that appear on it clearly indicate an approaching ovulation. But in order to catch the moment when the second one comes, you need to test more than once.
Better to do it from 10 am to 8 pm. If the study is conducted early in the morning, then it is advisable not to take the first portion of urine for it. On the day of the test, the woman should reduce the amount of fluid consumed and often go to the toilet.
Two ovulations and pregnancy
From the moment of ovulation, the egg can be fertilized by sperm for another 18 hours. If the woman is healthy and the condition of the inner layer of the uterus is favorable for the embryo to be implanted, then the onset of even two or more pregnancies is possible. This can occur as ovulation almost simultaneously or with a small time gap.
In the case when two ovulations have occurred and both eggs have fertilized, twins are born. It is not necessary to confuse this with an identical pregnancy, when only one egg is fertilized with two (or more) spermatozoa. And the twin is like two peas in a pod like a brother or sister. There are cases when as a result of double ovulation, children were born from different fathers.
There are many women who dream of giving birth to twins. To achieve this, they resort to such a means as the stimulation of ovulation folk remedies. Medicinal herbs, among which sage and plantain are the most popular, products made from aloe, bath with aroma oils, balneotherapy and vitamin complexes - all this is used to stimulate egg maturation.
And, although plants contain substances like estrogen, you should not self-medicate. It is better to pre-consult a doctor and be examined. Self-prescribed herbal to stimulate ovulation sometimes do not give the expected result. And the risk of side effects is quite high.