You can’t get pregnant during a normal physiological period because there is no ovulation at this time. However, women are not recommended to have intercourse during menstruation. The menstrual period itself is due to the gradual decrease in estrogen secreted by the ovaries after ovulation, the endometrium begins to peel, capillaries rupture and bleeding occurs i.e. menstruation. Therefore, if the menstruation is normal, i.e., the amount of menstruation is normal, etc., because there is no egg discharge, coupled with the endometrial lining is peeling off, so even if a fertilized egg is formed, it is not suitable for fertilization of the egg. Even if you won’t get pregnant, it’s still not suitable to have intercourse during menstruation because during menstruation, the cervical opening is open, and if you have intercourse at this time, bacteria can easily enter the vagina and multiply and enter the uterine cavity through the cervical opening, which may cause endometritis, adnexitis, pelvic inflammatory disease, etc., and the clinical manifestations of which are fever, abdominal pain, and abnormal leukorrhea. So women are not recommended to have intercourse during menstruation.