Most women who have intercourse 2 days after menstruation have a very low probability of becoming pregnant, or are theoretically unable to become pregnant. However, if a woman has an abnormal physiological cycle, it is clinically possible to have intercourse 2 days after menstruation and become pregnant. When a woman is 2 days after her period, she is usually in the follicular development phase. Follicles in the growth phase are usually too small to ovulate normally. It takes two weeks for the follicles to develop and mature and expel the egg cells. Therefore, normally, a woman with a normal physiological period will not form a fertilized egg at this time and will not become pregnant. In rare cases, if a woman’s menstrual cycle is irregular, or due to mental or psychological factors, this may lead to abnormal ovulation, with early ovulation occurring 2 days after the end of the menstrual period, when there is a lower likelihood of sperm meeting the egg to form a fertilized egg. In addition, when men and women have intercourse 2 days after menstruation, in rare cases, the sperm survive in the female reproductive tract for a long time, and if the woman ovulates early, it is possible that the sperm-egg union is achieved at the next ovulation, which may also lead to pregnancy in women. Therefore, women who plan to get pregnant are advised to have intercourse about 14 days before their next period to prepare for pregnancy. Women who do not plan to get pregnant, even if they are not ovulating, should still take good contraceptive measures, such as taking birth control pills and using condoms. It is important to avoid unintended pregnancy as much as possible to avoid affecting your health.