It is mainly related to the change of hormone level in the body. In the early stage of pregnancy will show an increase in estrogen and progesterone, which will easily lead to unstable levels in the body and a state of hunger. At this time, the fetus is growing slowly and needs less nutrients, so you don’t need to eat excessively, you can eat less and more and pay attention to the nutrition. In most cases, pregnancy reactions will occur in early pregnancy, showing a loss of appetite, and when hunger pangs are strong, blood sugar should be drawn in time to rule out the possibility of gestational diabetes. If you have high blood sugar, you should control your diet in time, do not overeat or eat foods with high sugar content, and intervene with medication if your blood sugar is too high.