Thank You! To everyone who sent me a message back. I went ahead and gave him back and I was really sad about that. Unforunately the more I looked at him, the more I realized he wasn't purebreed. Anyway, I have found someone else that seems to be a great breeder and I think my husband and I may be buying later down the road. It was just a really bad experience and I felt really really guilty about giving him back but I knew that I couldn't afford the medical bills and whatever else that could come up.
Anyway, thanks again to everyone for your support.