The upset stomach at night in pregnancy needs to be treated according to the causes such as pregnancy vomiting in early pregnancy for pregnancy vomiting care, improper diet for dietary adjustments, and the fetus pressing on the stomach in late pregnancy for smaller meals and more frequent meals. 1. Early pregnancy vomiting: early pregnancy due to hormonal changes in the body, the stomach may be upset at night. Mild vomiting can be rest, avoid contact with vomit-inducing odors food or additives, while eating small meals every day to daily care, but very serious vomiting, need to go to the hospital as soon as possible to deal with, to prevent the emergence of water and electrolyte disorders, which may lead to risk. 2. caused by improper diet: when pregnant, the digestive tract is relatively fragile compared to usual such as spicy, stimulating, high fat and other foods can cause digestive discomfort in pregnant women, this time you need to adjust the dietary structure, choose light, easy to digest, highly nutritious food to eat. 3. Fetal compression of the digestive tract in mid to late pregnancy: As pregnancy continues to rise, in mid to late pregnancy, the uterus can press upward to the stomach and backward to the intestines, which can cause discomfort in the stomach at night, and this situation can be reduced by eating fewer meals per day to reduce food intake, and reduce the bloating and so on. With the gradual increase of pregnancy, the head of the fetus can enter the pelvis near the time of labor, and the pressure on the stomach will be reduced. Therefore, once you have stomach discomfort at night, you need to find out the cause before dealing with it, and if necessary, go to the hospital to consult a doctor, so as not to affect the quality of daily life of pregnant women.