Pregnant morning belly small evening big may have the following aspects: 1, the body after a night of digestion of food in the morning when you get up most of the formation of stool, so that the morning just got up when the belly is relatively small; 2, just got up in the morning when the water in the body is relatively small, and then after the noon and evening two meals of food and water in the body are relatively increased, so the morning when you get up belly Relatively small; 3, in the evening due to the influence of pressure fetal activity may be relatively more frequent, its metabolism will also be strong at this time, the amount of amniotic fluid will also have a certain increase, so the pregnant woman’s stomach will be larger at night and smaller in the morning; 4, may have a certain relationship with the pregnant woman’s eating habits, such as pregnant women do not like to eat at night, and then eat more at noon in the morning, which leads to the afternoon is also In the evening, there is more food stored in the body, the stomach is relatively large.