When you are pregnant, you will feel upset stomach, especially in the early stage of pregnancy when the early pregnancy reaction is more serious, some people even have nausea, vomiting, and cannot eat. This is because chorionic gonadotropin is elevated in the blood after pregnancy, so it will cause stomach discomfort and early pregnancy reaction. If obvious early pregnancy reaction, you can eat less and more meals, usually pay attention to comprehensive nutrition, relax your mood, if high tension and anxiety, it will also aggravate the early pregnancy reaction. Chorionic gonadotropin in the early pregnancy will be in every other day exponentially increased, to the pregnancy of 8-10 weeks or so will no longer rise, to maintain a period of time after a stable will begin to decline, at this time the stomach discomfort will be significantly reduced, the early pregnancy reaction will gradually disappear. So pay attention to your diet in early pregnancy, eat comprehensive nutrition, and eat more easy-to-digest food.