The first two days of the third trimester of pregnancy have a stomach today no stomach more than considerations may be a normal physiological phenomenon, but also may be early pregnancy reaction caused by weight loss or gastrointestinal flatulence due to the reduction of gastrointestinal flatulence, it is recommended that the regular pregnancy checkups, pregnant women of their own indicators and the development of the fetus to monitor. 1. Gastrointestinal gas: Gastrointestinal motility deteriorates after pregnancy due to the influence of progesterone, so the stomach may be visible during early pregnancy due to gastrointestinal gas, and if the gastrointestinal gas is relieved at present, the stomach will not be so visible. 2. Weight loss: If the early pregnancy reaction is heavy, the nutritional intake during pregnancy is not enough weight loss will also appear to feel the first two days have a stomach, today feel no stomach situation, need to pay attention to strengthen the nutritional balance to promote normal weight gain. Whether it is a physiological phenomenon or caused by weight loss, it is recommended to go to the obstetrics department of the hospital on a regular basis for regular pre-pregnancy checkups to determine whether the development of the fetus is normal, to determine that the fetal heartbeat is normal, generally do not need to worry too much about it, and should also pay attention to strengthening nutritional balance during pregnancy.