The size of the 30-week belly depends on the size of the pregnant woman. The height of the uterine fundus can reach about 4 horizontal fingers above the umbilicus, and the belly of an obese pregnant woman is bigger. As the weeks of pregnancy continue to increase, the abdomen also continues to grow, the height of the uterine fundus is a common indicator of the size of the stomach, which differs from the amount of amniotic fluid, the size of the developing fetus, single fetus, twin fetuses. At 30 weeks of pregnancy, the uterine fundus is located approximately 4 horizontal fingers above the umbilicus, but there are individual differences, mainly due to the different body types of pregnant women, obese pregnant women have a bigger belly. While paying attention to nutrition during pregnancy, you should control your weight reasonably under the guidance of your obstetrician to avoid abnormalities such as the formation of a giant child or a small developing fetus due to malnutrition.