Quote Originally Posted by JLC
If you're not 100% sure she's pregnant, it would definitely be in your (and her!) best interest to get her to a vet and make sure. Even if you can't afford having a vet monitor the pregnancy or deliver the puppies....you at least need to rule out some other reason for her belly to be swelling.
I am sure now that she is pregnant. The "swealling" are the puppies inside of her not a tumor of any kind. But i agree i will take her to the vet asap.