Most women gain two to four pounds during the first trimester. This weight is necessary for baby's growth and for extra tissue, muscle, fluids and blood for you. Uterus 2 Total 29.5 to 30.5 pounds Safety Be careful to avoid poisoning by cooking meats properly and avoiding foods that are not pasteurized, such as soft cheese. During the second trimester, your breast, uterus and blood volumes are increasing, and you will gain an average of 12 pounds. During these three months, your body needs 300 extra calories per day.
Protein is very important.
Good foods to eat include milk, cottage cheese, meat, poultry, fish and eggs. Your extra 300 calories can be added by drinking one extra cup of milk and eating an additional four ounces of lean meat in a day. Don't forget your fruits and vegetables because they are just as important. During the seventh, eight and ninth months of pregnancy, your body will continue to need 300 extra calories per day. You will gain an average of 12 pounds as the baby, placenta and amniotic fluid continue to increase in size and volume.