Please don't breed those girls... They are much too small and couldn't possibly produce a healthy litter yet. Like a 12 year old getting pregnant... She CAN, but is it a good thing?

Separate them before they get pregnant. They only look to be around 2-3 months old, maybe.

You also really shouldn't breed the fawn colored girl. She is an odd-eye, she has a wedge-blaze, and she's also a husky. She's a high-white marked rat that could possibly be carrying megacolon. All of those color patterns/markings are a very high risk.

The hooded is fine, but too young. Stick with self(one solid color), berkshires(white feet and white tummy), irish(white marking on chest), or hooded. You won't have problems when breeding those. Megacolon babies rarely pop up in litters from rats with those markings, unless the line carries it anyway.

So please, separate them immediately, and don't let that fawn girl get pregnant.