If you are pregnant and vomiting especially loudly, consider the early pregnancy reaction is more serious, hyperemesis gravidarum, stomach disease, etc.. 1. Early pregnancy reaction is more serious: after a woman is pregnant, the hormone level in the body will rise, some early pregnancy reaction will occur, the more common is nausea and vomiting, which is a normal physiological phenomenon, if the nausea and vomiting is more serious, it will be manifested as louder. 2. Hyperemesis gravidarum: Hyperemesis gravidarum is a kind of benign gestational trophoblastic disease, which will lead to a continuous increase in HCG levels in the body, and severe vomiting will also occur, which will occur earlier than in normal pregnancy and last for a longer period of time. 3. Stomach diseases: If the pregnant woman herself has a stomach disease, such as chronic gastritis, gastric ulcer, etc., nervousness after pregnancy, dietary inattention or stopping medication will lead to the onset of the disease and severe vomiting. There may be other reasons for vomiting in pregnancy, so it is recommended to go to the hospital in time, complete the examination to clarify the cause of the disease, and then give targeted treatment under the guidance of the doctor.