Fertile and infertile days
The menstrual cycle of a woman includes the time from the onset of one menstruation up to the onset of the following one. At midcycle there comes to ovulation – the female ovum reaching its maturity. That is also the time when mucous membrane of uterus matures and is ready to receive fertilized egg.
Biological properties of ovum suggest that conception is possible at some definite point of time during the cycle coinciding with ovulation. Taking into consideration that female egg is capable of being fertilized at most 48 hours after ovulation, and that spermatozoa retain their capacity to fertilize eggs even up to 4 days after ejaculation, FERTILITY PERIOD is estimated to be during 6-7 days at the midcycle (see the diagram).
With regular use of Maybe Baby™ mini-microscope you can reliably determine seven fertile days!