what species of hamster is it? I would suggest isolating her from any others
Hamsters can eat their young, it's best to keep them away as babies away from their mother for a few times in the first month. Separate them regularly, and watch them. They're not little things that you can really let run around playfully.
never try to open there cage or get the puffs because they will kill the babies if you did it
If it's a sirian hamster they have to live alone