Various pregnancy hormones can bring changes to the body to protect the fetus in the womb. There are pregnancy hormones that occur only during pregnancy, but there are also hormones that have been there before but the levels change in the body during pregnancy. Not only physical changes, various pregnancy hormones can cause emotional changes during pregnancy. These hormonal changes can even cause annoying symptoms during pregnancy. In certain cases, this pregnancy hormone can cause excessive vomiting during pregnancy. Various Pregnancy Hormones Here are some pregnancy hormones and hormones that change during pregnancy: Human Chorionic Gonadotropin Hormone (hCG) Human chorionic gonadotropin hormone is a pregnancy hormone produced in the placenta. This hormone will help maintain pregnancy and fetal development in the womb. The hCG level can also be a marker of pregnancy as well as the health of the fetus contained. If the hCG level is low, there is a possibility you have an e...