According to Healthline”, Your developing baby is protected by the amniotic fluid in your uterus, as well as by the strong muscles of the uterus itself. Erotic activity won’t affect your baby, as long as you don’t have complications such as preterm labor or placenta problems. However, here is how copulation affects your baby during pregnancy.
Intercourse will not harm the baby at any stage during a typical, uncomplicated pregnancy. The baby is protected by strong uterus muscles, amniotic fluid, and a mucus plug that develops around the cervix. Some people believe that erotic activity or orgasms might damage the baby, increase the chances of a miscarriage, or induce early labor. However, in a healthy pregnancy, none of these are true.
During the later stages of pregnancy, people should choose positions that do not put pressure on the pregnant belly, such as the missionary position. If a woman lies on her back, the weight of the baby might put extra pressure on her internal organs or major arteries.