Pregnancy is less likely to occur the day after menstruation, but it can also occur in women who normally have irregular periods.
The next day after menstruation, the uterine lining is in a very thin state, which is not suitable for the fertilized egg to settle, and at the same time, this period does not belong to the period of ovulation, the ovary has no egg discharge, and the combination of egg and sperm will not be able to take place, so it is less likely that a pregnancy will occur.
However, for women with irregular menstrual periods, the time of ovulation is uncertain, and ovulation may occur just after the end of menstruation, at which time intercourse may result in pregnancy.
It should be noted that the endometrium has not been completely repaired at the end of menstruation, not completely closed, coitus is prone to gynecological inflammation, it is recommended to wait until the menstrual period is completely clean for 3 days before coitus. For more information, please consult your doctor.