It is not possible to determine whether a pregnant woman is a boy or a girl by the shape of her belly, which will show up as a bulging abdomen whenever she is pregnant. A pregnant woman’s abdomen will appear to swell when she is pregnant, and the exact shape is related to the position of the fetus, but not to the sex of the fetus. The shape of a pregnant woman’s stomach changes when the fetus moves around in her belly. In addition, due to the different habits during pregnancy, those with better nutritional intake have a larger abdomen, and pregnant women with insufficient intake will show a smaller abdomen. It is recommended that pregnant women develop good habits of pregnancy checkups and try not to focus on the gender of the child when there is no need for hereditary diseases, as long as they are at ease with their pregnancy and promote the healthy birth of the child.