It is possible for pregnancy to cause a bloated stomach. Women who have sex without taking proper precautions against pregnancy are very likely to get pregnant. After pregnancy, due to the elevated level of hormones in the body, it will lead to a series of early pregnancy reactions, such as nausea, vomiting, breast tenderness, bloating and other discomforts. Due to the elevated hormone levels in the body, it will lead to slower gastrointestinal peristalsis, which will easily lead to the symptoms of gastrointestinal flatulence due to the reduced ability to digest food. In addition to pregnancy, women who suffer from indigestion or acute gastroenteritis, appendicitis, etc. may also cause bloating and other discomforts. Therefore, if you have sex without proper contraception and experience symptoms such as delayed menstruation and bloating, it is important to rule out the possibility of pregnancy. It is recommended that if women have special discomfort, they must go to the hospital as soon as possible to find out the cause of early treatment.