You need to eat more fresh fruits and vegetables, lean meat and eggs after pregnancy. These foods are not only nutritious, increase the body's resistance, but also won't get fat. Eating properly will not gain weight, but don't be picky about food during pregnancy. You need to meet the nutritional needs of the fetus. Don't eat too many carbohydrates. At the same time, exercise properly, such as walking. Keeping a good mood and breathing more fresh air can basically kill two birds with one stone.