She needs a quiet place. A box or bed with towels or some kind of bedding that can be changed when it gets dirty. If you allow her free roam to an entire house she will move your babies to a place you can't find them, so try to confine her a bit. Be prepared with a phone number for a LOCAL vet AND emergency vet (as these things happen after hours) just in case. For the most part, she will do it all by herself, but you must be prepared for the possibility of a mishap. Make sure mom is receiving good food, kitten chow has extra nutrition, and lots of water. Good luck.