First thing, did she build a nest?  Second thing, make sure she has unlimited food and water (hay and pellets), as she needs the extra nutrition and hydration while lactating. 

Others with more experience can chime in, but you want to minimize disturbing her at first, but you will need to check the babies to remove any that have died. 

If she has already built a nest, I believe you can provide a nest box and she may move into it. 

And yes, definitely keep them where they are, in the same cage, until the babies are weaned. Not sure about play time…. someone else will have to chime in. It probable will depend on your set up, because you won’t want her to be separated from her babies. 

First off don’t panic that doesn’t solve anything.

Check out this document and hopefully it will help:

– http://www.bio.miami.edu/hare/surpriselitter.html

Make sure she’s doesn’t chew on any of them on any of there fur or ears momma bunnies tend to do that sometimes and I can really hurt the baby. What kind of rabbits are they?

You can check their tums after feeding-time. Their tums should be nicely rounded.

Good luck i remember when my cat had kittens best to leave them alone and let the mother care for them. I would just make sure the mother is comfortable and in a quiet spot I bet they will grow to be cutties! Baby bunnies are beyond cute!!!