How to tell if your piggy is going to have babies

Question
Hi
I would like to know how i can tell if my female piggy Yakko is going to have babies. Any help you can give will be great I can also send photos of her.
Bunnyness

Answer
For starters, she has to have been with a male.  Secondly, the first thing you'll notice is weight gain.  You can send me a picture at astrathm@purdue.edu.  Stand abover her with her on the ground for the pic.  Make sure you put guinea pigs in subj or it may get deleted.
Anngela