Postpartum weight loss tips?

I am 8 months pregnant (with my first child), due in July. I have not gained weight anywhere except in my stomach, and it appears to be "all baby." I made sure not to eat too much throughout my whole pregnancy, and I have stayed active and done moderate excercises. I'm wondering, how long did it take you to lose your baby weight? If I do not have any excess weight, will it be easier for me to lose the belly? And if I excercise regularly? Any tips or advice from moms would be greatly appreciated! I'm hoping to fit in my old work clothes so that I won't have to buy new ones :) Thanks!!