Pregnancy weight will increase, but the first three months of pregnancy weight gain is not obvious, to the mid-pregnancy and late weight will change, generally is the whole pregnancy weight will increase about 20 pounds, which are normal phenomenon. It is normal to gain about 20 pounds during the whole pregnancy. It is better not to overeat during pregnancy, so as not to cause excessive weight gain, and it is also easy to cause the fetus to be too big, which will affect the smooth delivery. During pregnancy, it is best to pay attention to dietary diversity, and it is also recommended to pay attention to small meals, it is best to eat more vegetables and fruits, such as oranges, grapefruit, but also tomatoes, carrots and so on, which can replenish vitamins. It is also recommended to eat more bananas, apples, etc., which can prevent constipation during pregnancy, and it is best to drink more milk and eat more soy products to replenish proteins, which will help the baby’s development.