Ejaculation in the body during physiological period will not lead to pregnancy, physiological period is the endometrial shedding bleeding period, at this time the woman did not ovulate, so there will be no pregnancy. It is only during the time of ovulation that the egg is released and the sperm can be combined with the egg to form a fertilized egg. If you have intercourse during the ovulation period, it may lead to pregnancy, but it is recommended that you do not ejaculate during the menstrual period in order to avoid infections. During menstruation, a woman will have bleeding and her uterus will be open, so having sex at this time may cause bacteria and viruses to enter the vagina, resulting in vaginal or uterine infections. In severe cases, this can lead to complications such as endometriosis or cervicitis, which can directly affect your daily life.