All the weight will increase during pregnancy, but should control the weight to increase reasonably. The total weight gain of pregnant women with normal pre-pregnancy BMI should be controlled at 11-15kg during pregnancy, and the weight gain of overweight obese people should be less, and the weight gain of people with low BMI should be more. Control the rate of weight gain can be done mainly through the following ways: 1. Adjust the diet: on the premise of not affecting the nutritional supplement of the fetus, you can choose light and easily digestible food and do not overeat. Diet should be evenly matched, to consume enough nutrients, but also to control a variety of fats and oils and fatty foods, can be properly supplemented with fresh fruits and vegetables, such food is not easy to make pregnant women fat; 2, moderate exercise: in a healthy state of physical condition assessment, the entire pregnancy also appropriate some exercise, but should not be too strenuous, appropriate exercise Can soothe the mood, so that muscle exercise, not only can effectively control the weight of pregnant women, the normal development of the fetus will also have a very good help; 3, improve lifestyle: to ensure adequate sleep and rest time, regular rest, avoid staying up late, maintain a good mood, help to insist on maintaining a good weight during pregnancy. In addition, pregnant women should not only focus on their own weight changes, they should always pay attention to the development of the fetus to ensure that the fetus can grow and develop normally.