Bloating in the afternoon of 30 weeks pregnant may be caused by poor eating habits, enlarged uterus pressing on the stomach, indigestion and other reasons. 1. Poor eating habits: 30 weeks pregnant with the habit of overeating and overeating at every meal may have a bloated stomach. Usually eat too much easily greasy, gas-producing food, such as fatty meat, sweet potatoes, potatoes, also have a bloated stomach. 2. Enlargement of the uterus compresses the stomach: with the increase of pregnancy weeks and the enlargement of the uterus in the 30th week of pregnancy, the uterus may top the diaphragm and even the stomach, which may also appear to have a bloated stomach. 3. indigestion: during pregnancy, there are gastrointestinal disorders, gastrointestinal peristalsis slows down after the poor digestion and absorption of food, can also cause bloating phenomenon. Clinical 30 weeks pregnant in the afternoon bloating causes more, serious recommendations for timely medical treatment and treatment.