Kat, you're still going to want to get her a same sex friend for those times that she's resting after weaning her litter. You won't want to keep the male in with her when she has her litter (so he'll need a friend too). If he's allowed to stay with her, he will impregnate her again within a day of her having her litter (I know this from experience when I didn't get a female separated from a male before she had her litter - the babies were a day old when I separated them, and she had a litter four weeks to the day after the first litter - apparently they "hold" the sperm the first week to allow the first litter time to be weaned before the second one arrives - ain't nature grand?)