I have been breeding my own rats for the last couple of yrs now and I have never run into this situation I'm about to ask about so i was hoping to get some opinions. I have a breeder female that just finished weaning a litter and I was about to move her to the recovery tub to rest a bit before going back into rotation...well I noticed that her stomach is swelled like she is in full term with another litter but I'm certain that she has not had any contact with a male since I moved her from the breeder tubs while she was still prego.....any thoughts on whats going on? I have lots of breeders and I would really hate to get something going around my colony so I have her in quarantine at the moment until i can figure it out.