How far along is your dog? What is her due date?
My female is very territorial about her "whelping space" with other animals in the house and will chase them from the room. Setting up the whelping pen and setting aside a quiet area for her whelping space helps to relieve anxiety and everyone seems happier.
Do you have a whelping pen or box? Getting that set up and gathering your whelping supplies so they are all on hand for when they are needed is a good way to be prepared and to help your girl feel more comfortable.
Also, have you planned on getting a pregnancy x-ray about 5 days before the pups are due. This will let you know how many puppies to expect so you know if there is a problem when she is whelping. Also, if any of the the puppies are too large, they can see that on the x-ray so you can plan for a c-section.