[cypher]

Separate them now.
As souffle said she may already be sexually mature but that isn't the same as being old enough to breed without possibly having a negative impact on her health & risking the chance of losing her & her pups if she did get pregnant.

I really can't urge you strongly enough to keep all your hamsters separate & do some real research into breeding before attempting it again, I really don't want to be rude but from both your posts it's clear you don't have the knowledge or experience for this yet & it could all end very badly for your hams.