Well about 8 weeks ago my female guinea pig gave birth to 6 little babies. Whe thought she was a boy so was housed with out male piggy. About 6-5 weeks into her pregnancy we knew she was pregnant so seperated her from out male. Everything went well. The boys we seperated at three weeks and four have already found forever homes. However during laptime her belly fells kind of bigger/rounder. I do not know what to think now. She did not come in contact with any males!