There is no effect of having sex 2 days before your period and getting pregnant. In this case, it is recommended to have regular pregnancy checkups. Around 50 days after menopause, you can go to the hospital for gynecological ultrasound to find out the development of the fetus in the uterus. If there is vaginal bleeding, lower abdominal pain, or lower abdominal discomfort, it is recommended to go to the hospital for examination as soon as possible, so you should not wait for about 50 days before going to the hospital for examination. Further examination of gynecological ultrasound, blood HCG and blood progesterone is needed. If progesterone is low and fluid is visible on gynecological ultrasound, further treatment with progesterone supplementation is needed to stop the bleeding. Prohibit sexual intercourse, pay attention to rest and avoid strenuous exercise, and review the condition in one week. If the vaginal bleeding is heavy or the lower abdominal pain is severe, return to the hospital immediately.