Is conception possible before menstruation and what affects early ovulation?
The calendar method for calculating favorable days for conception suggests that a woman can not become pregnant before menstruation. But practice often refutes this assertion. Let’s consider the basic non-standard situations when fertilization is possible not during the period of ovulation, and we will try to answer the question, whether it is possible to become pregnant before menstruation.
The menstrual cycle includes the following stages:
- The reference point coincides with the first day of the month. During this period the mucous membrane of the uterus exfoliates and is excreted from the body in the form of bloody discharge.
- The second stage takes about two weeks, during which the ovarian follicles are actively developing.
- After rupture of the ripened follicle, the released egg moves along the fallopian tube into the uterine cavity, waiting for fertilization for 2-3 days. This phase is called ovulatory.
- The last stage takes approximately 14 days. After the meeting of the ovum with the spermatozoon, a yellow body develops – a temporary gland producing hormones, estradiol and androgen, and continuing its activity until the placenta is fully formed. If during this period, pregnancy does not occur, the gland dies, and the level of female hormones is rapidly declining. The cycle is repeated again.
In gynecology there is such a thing as double ovulation, when in one menstrual cycle the egg cell ripens twice. The process can happen in one follicle or in another. The phenomenon occurs simultaneously or with an interval of several days. However, double ovulation is more often observed in cases of stimulation of the ovaries by hormonal drugs that are used in the treatment of infertility or polycystosis. This technique is also actively used before artificial insemination.
But this does not mean that double ovulation does not occur in vivo. The causes of this phenomenon have not yet been studied, but in practice, about 10% of women are capable of repeatedly ripening follicles. Gynecologists and reproductologists suggest that the origin of the phenomenon lies in hereditary predisposition, irregular sexual life and the influence of some herbal preparations.
Physically, a woman can not feel the approach of double ovulation, but some signs exist:
- Painful sensations in the lower abdomen.
- Increased sexual desire.
- Change in basal temperature.