It is better for pregnant women to eat nutritionally balanced, light and easy-to-digest food in the first trimester. After pregnancy due to changes in hormone levels in the pregnant woman’s body, nausea, vomiting, acid reflux, fatigue and other early pregnancy reactions will occur at about 6 weeks after menopause, and most will disappear at about 12 weeks after menopause on their own. So affected by different degrees of early pregnancy reaction, pregnant women in the first trimester to eat some light and easy to digest food is good, pay attention to ensure energy intake. From the middle trimester onwards, we should increase the amount of food rich in protein, iron, calcium and other nutrients, such as lean meat, eggs, dairy products, poultry and fish, etc., and moderate exercise under the guidance of the doctor, in order to maintain the appropriate growth of body weight during pregnancy.