The causes of hunger in early pregnancy: First, most of them are related to hormones, pregnant women will increase the body’s progesterone during pregnancy, which will affect the hormones that play a role in hunger, hormones mainly include leptin and gastric hunger hormone, the general feeling of fullness is the role of gastric hunger hormone. In the early stages of pregnancy, stomach hunger hormone can not play a role, so you will often feel hungry, but in the middle of pregnancy, hunger will slowly disappear. Second, hunger in early pregnancy may also be due to high calorie demand, in early pregnancy do not need too much calorie intake, the middle and late pregnancy need to intake calories, so high calories may lead to hunger. Third, early pregnancy hunger may be due to their own psychological factors, some women pregnant always feel the need for more nutrition, eat more of their favorite foods, and feel very hungry every day. Fourth, it may be due to improper diet, if pregnant women eat food with high sugar content or over-processed food, these foods are not only not nutritious, and metabolize quickly, it is easy for pregnant women to feel weak and easily hungry.