It is also possible to get pregnant if you have intercourse on the eighth day of your period, although the chances are relatively small. Ovulation is in the next menstrual period before the 14th day or so, usually the day before 5 days and 4 days after a total of 10 days are counted as ovulation, for patients with short menstrual cycles, such as the menstrual cycle of 21 ~ 27, 8 days of menstruation has entered the ovulation period, so menstrual eight days of coitus may also get pregnant, but the chances are relatively small. For patients with regular menstrual cycles, the safe period is not absolutely safe, and ovulation can be advanced or pushed back for various reasons, so as long as the coitus is the possibility of pregnancy; there is no intention to get pregnant, it is best to take contraceptive measures at any time of coitus. If you feel unwell, you should go to the gynecology department of the hospital in time and consult a gynecologist.