what is normal weight gain in pregnancy
Depending on how much a woman weighed before getting pregnant, the IOM recommended weight gain for each category of pre-pregnancy BMI is as follows: 1  Underweight (< 18.5 kg/m2); total weight gain range: 28 to 40 pounds.  Normal weight (18.5 - 24.9 kg/m2); total weight gain range: 25 to 35 pounds.