Sexual intercourse is not allowed in the early stages of pregnancy. If you have sex within the third month of pregnancy, it may result in miscarriage or embryonic arrest because the embryo is not very stable at this time, so you must not have sex within the third month of pregnancy. After the 7th month of pregnancy, you should not have sex either, because the pregnant woman’s abdomen is relatively large, when having sex, there is a risk of pressure on the fetus, causing premature rupture of the fetal membranes and premature birth, and also causing chorioamnionitis. You can have sex during the 3rd to 7th months of pregnancy, but you must be gentle when having sex, but not too often.