In the early stage of pregnancy, if you have intercourse, you should pay attention to see if there is lower abdominal pain or small amount of vaginal bleeding. If there is no such situation, you should pay attention to proper rest, eat more easily digestible, light and nutritious food, and do not have sex again in the short term. If you have lower abdominal pain or a small amount of vaginal bleeding after intercourse, most of the cases are combined with pre-eclampsia, it is best to go to the hospital for a checkup. If the progesterone medication is given to keep the fetus alive, then a review will be done. Women need to prohibit intercourse in the early stages of pregnancy, especially in the first trimester.