As long as you aren't overcrowding the females can stay together hen one has a litter. If things are oo tight for that just separate her out at about 18 days. They're really, truly, communal animals. In good conditions, with good diets and ample space you don't need to worry about other females hurting the babies. Even males are usually fine with the little ones but since females are back into heat within 24 hours, you don't want that.


But yeah, they can stay together right now. Not sure how pregnant she is, but just move the baby with whichever parent it's the same gender as and make sure everybody has a cage mate or more over the long term.