Wow.  80 pounds is alot!!!  I gained between 25-30 with each pregnancy, but never lost it all each time. So each time I got pregnant I started out with a higher weight.

I did alot of swimming during my pregnancies which helped with the weight and the swelling.  (Mostly late summer babies).

You’ll find you are alot more active after the first pregnancy since you have to run after your toddler while pregnant (a good natural exercise :)).

Good luck with your decision