What is a healthy amount of weight to gain as i approach my pregnancy due date?

20-30# total: Most experts say 20-25 or 25-30 # is ideal weight gain for a woman of healthyl weight with a single fetus throughout the pregnancy. This weight includes the fetus, the placenta, the amniotic fluid, the increased maternal blood volume of breast enlargement and some increased body fat. Most of the weight gain in the last few weeks is baby weight of up to 1/2# per week plus some fluid retention.