For women with a history of sexual intercourse, the possibility of pregnancy cannot be ruled out. The most accurate way to diagnose pregnancy is to take a blood test for chorionic gonadotropin, which can be false positive or false negative. If the chorionic gonadotropin level is higher than normal, the pregnancy will be confirmed and an ultrasound will be performed to determine whether the pregnancy is intrauterine or ectopic. It is recommended to go back to the hospital around 45 days after menopause to review the pregnancy because if the time of conception is short, the ultrasound may not be able to detect the basis of the pregnancy. If the blood chorionic gonadotropin value is normal, pregnancy can be ruled out and a menstrual disorder is considered. If the endometrium is of a certain thickness, progesterone treatment can be given to bring on menstruation after stopping the medication. If the endometrium is thin, it means the estrogen level in the body is low, so estrogen treatment can be given to stimulate the endometrium growth, and then progestin can be added and both of them can be stopped at the same time to make menstruation come.