Thanks so much for all the advice! Her name is Lilly, she's 3 years old and has had multiple litters. I've met her only once before...she is about 150 miles away. I'm told she is an excellent mom, cleans up the puppies on her own.
We have a 3 yr old male yorkie and a 17 yr old male schnauzer at home. We have a big old house so it won't be a problem keeping them seperate. My plan is to have her and the pups in our spare bedroom, where it will be quiet and I can spend most of the day and be there all night. Then when the puppies are older we can have supervised play time with the other two
Oh also, once the vet says it's ok we're going to have her spayed so that she can just concentrate on being a happy doggie.