In the early stages of pregnancy, intercourse is not allowed. If you have sex in this situation, it will cause some stimulation to the abdomen of the pregnant woman, and it will also cause drastic emotional changes, which can lead to the occurrence of diseases such as pre-eclampsia or miscarriage, so it is recommended that pregnant women should avoid having sex in the first and second trimester of pregnancy. And even in the middle of pregnancy to have sex, you need to take the appropriate position, and in the process of carrying out this activity can not be violent, rough, gentle movements, so as not to cause preterm labor or premature birth and other diseases, is not conducive to the health of pregnant women, but also not conducive to the healthy growth of the fetus.