There are many reasons for the uncomfortable stomach in early pregnancy, most of which are normal physiological phenomena, mainly due to the early pregnancy reaction caused by the growth and development of the fetus, or caused by the change of hormone level in the body. If the uncomfortable feeling is more serious and unbearable, you need to go to the hospital to check whether there are other pathological conditions.1. Physiological factors: As the uterus starts to become bigger after pregnancy, the uterine ligaments are stretched and the hormone level changes lead to gastrointestinal tract dysfunction, which may cause abdominal pain, nausea and vomiting, some patients may also be accompanied by drowsiness and chest distension, which are generally normal physiological reactions, and in the The symptoms can be gradually relieved after the third month of pregnancy; 2, disease factors: in the early stages of pregnancy, if the pregnant woman has continuous pain in the abdomen and accompanied by bleeding and other abnormalities, you need to promptly seek medical examination to determine through ultrasound whether early pregnancy miscarriage or ectopic pregnancy may occur, according to the disease situation to take birth control or surgical treatment. If the stomach pain is more severe in early pregnancy, it may be caused by digestive system diseases or urinary system diseases, especially if it is accompanied by diarrhea, fever and other symptoms, it is recommended to seek medical attention and treat accordingly. Therefore, if only slight abdominal discomfort occurs in early pregnancy and the obstetric examination shows that the fetus is developing well, there is no need to be overly anxious and nervous. If the discomfort gradually worsens and is accompanied by other abnormal conditions, you should seek medical treatment promptly.