Is this female pregnant? Need opinions, please!

These are the only good pictures I can get from her so far (she goes nuts when trying to take pictures of her!)

Got her from PetCo about a month ago, she was originally a pretty fat one when we got her, and I noticed that she slightly put on even more weight. She's pretty big for a female (bigger than our two males), but i'm not sure whether she's pregnant or just holding her big weight. But this is what I got so far...

http://i430.photobucket.com/albums/q...s/DSC02648.jpg

http://i430.photobucket.com/albums/q...s/DSC02644.jpg

http://i430.photobucket.com/albums/q...s/DSC02646.jpg

I have no experience actually breeding rodents, but she looks prego to me!

I'm inclined to say yes, but can you post a overhead pic of while she's i the cage like this one: it was taken 2 days prior to her delivering 15 pups

http://i165.photobucket.com/albums/u...se100_2160.jpg

Shes pregnant.

Sorry for the wait guys, but I tried to get some over aerial views of her, so here they are...

http://img220.imageshack.us/img220/3508/dsc02652m.jpg

http://img401.imageshack.us/img401/7079/dsc02649h.jpg