So my sister had a male rat and her friend stole a female rat from the pet store and then put the two rats in the same cage and ended up ditching the female rat on her. Now my sister has moved back home and taken the two rats with her with the nine babies that resulted from them being together. We didn;t have any experience with rats breeding and kept the mom and litter in with the dad and she ended up giving birth again because we realized she was pregnant. 10 babies this time! She was only in there for a day before she was moved out with the second litter and now she's pregnant again! The babies are about four weeks. They've been eating and drinking by themselves for over a week so I've decided to put her by herself with one of the babies to keep her company until she gives birth. She is very young though and the two litters back to back have taken a toll on her(she has hair missing in places) and I'm worried if I should give the third litters babies away for reptile food and leave her with just two so she can recover.