is she pregnant

Question
i bought 2 guinea pigs almost 6 weeks ago and i think both are definately female although 1 appeared 2 be accidentally housed with males for a while in the pet shop.she is getting very big and has a rounded tummy kinda like its full of water or like she swallowed a ping pong ball.they arent very tame as yet so i dont want2stress her by poking at her.do you think she is pregnant and how can i be sure?im not sure of her age when i bought her.and if she is pregnant, would another female be ok2keep caged with her?  

Answer
She is basically guaranteed to be pregnant, especially with the round belly, which means she is probably around 2 weeks pregnant at least. Once the babies start moving she is 3 weeks from being due. It is ok to house the other female with her, just as long as they get along, if not then separate them. There is some information on my website about piggy pregnancy, http://woopets.bravehost.com , I did have more written, but then my bird erased it as I was typing. But , make sure to read that. If you have any more questions though, feel free to ask.
Brittany
PWOOBY@aol.com