Why is the male still in with her? She's just going to end up pregnant again, over and over... That is not healthy for any rat, not to mention a hairless one.

Stick her alone in a tub with the lid replaced with mesh. Give her high calorie food, something like Hills Prescription a/d is best, along with blocks and rat food mix.

Hairless rats do not lactate well, nor do they birth well. They generally resorb babies or have massive hemorrhaging. Babies can get stuck in the birth canal as well.

I would recommend that you discontinue breeding the hairless rats. If you insist on it, then get a carrier female who is fully furred. MUCH less problems and you still get hairless.

I can't see how they're pets if you're just pumping babies out of her like a factory. She doesn't even have time to recover... Even feeder breeders don't breed hairless.

OH, and scrub the cage. Pee is encrusted everywhere and that's definitely not a place fit for babies, especially immunosuppressed hairless-gene babies. Not a place for hairless rats or any rats either... If they got a cut, it's going to get very infected.