You should not have intercourse during the first month of pregnancy. In the early stages of pregnancy, especially in the first trimester, sexual intercourse is absolutely forbidden. This is because premature sexual intercourse may result in pain in the patient’s lower abdomen, vaginal bleeding, and even the occurrence of preterm miscarriage or abortion. The fetus during early pregnancy is not yet firm and solid enough, and intercourse is forbidden during this period. If the patient wants to have intercourse, it is recommended to do so after the third trimester of pregnancy. However, if the patient has a low placenta, placenta praevia or placenta abruptio, intercourse is not allowed in this case. If there are no such special circumstances, you can have intercourse, but you must pay attention to gentle movements during intercourse, otherwise it will easily cause preterm abortion or preterm labor.