If you begin at a healthy weight, your aim is to gain 1 to 4 pounds (0.5 to 1.8 kilograms) in the initial months of pregnancy ... Around 1 pound (0.5 kilogram) per week is expected until delivery.

if you were not obese or underweight, then the healthy weight gain during your pregnancy is between 25 lb - 35 lb (11 kg - 16 kg). Use this pregnancy weight calculator to find your week by week ...

The baby will gain most of its weight during the last 2 months of your pregnancy. You should try not to gain much weight at first. Plan to gain most of your weight in the last months of your ...

Underweight pregnancy was associated with lower risk for postpartum hemorrhage but higher risks for adverse neonatal outcomes.