16 weeks pregnant stomach is generally about the same as before pregnancy, but the specific varies from person to person, and the fat and thin before pregnancy and nutrition after pregnancy. 16 weeks pregnant at this time the uterus has gradually enlarged, will exceed the pelvic level, protruding from the abdomen, so the abdomen will have a slightly inflated phenomenon, but from the appearance of the general belly is not obvious, but if the pregnant woman’s body weight itself is relatively heavy, the accumulation of abdominal fat is more than one, the fourth month of pregnancy may be noticeable changes. There are also some pregnant women who are 16 weeks pregnant, because of better diet and nutrition, weight gain fast, the stomach may also have obvious changes. It is important to be aware of the need to eat a more nutritious diet during pregnancy, to avoid over-nutrition, and you should have regular labor and delivery tests.