Female mouse has had babies, but she has a daughter sharing the cage from her previous litter will all be ok?

my female mouse has just had a 2nd litter after she escaped and somehow got in with daddy mouse, the thing im concerned with is she has a daughter sharing her cage with her from the previous litter. will the daughter be ok with her younger siblings? or is it likely she will harm or kill the new babies? so far everything is ok, and all are happily sharing the nest, she seems to be fine with them all. but the babies are only 2 days old... could her behaviour toward them change? or can they all share the cage in harmony? any advise would be great... thank you