It is possible to have sex when you are six months pregnant, but your abdomen is relatively large at this time, so you must pay attention when you have sex, and you must be gentle and not too frequent. After the seventh month of pregnancy can not have sex, if you have sex again, because the abdomen is relatively large, it is likely to hurt the fetus, there may be premature rupture of the fetal membranes or placental amnionitis, premature birth or intrauterine infection, the impact on the fetus is relatively large. Under normal circumstances, within 3-6 months of pregnancy, it is possible to have sex, but you must be careful during sex.