Someone really should be with her when she is giving birth - and dogs more often than not have their puppies at night. Puppies and their mother do get into trouble, and you owe it to her to either be there or find someone who knows what to do who can be. If she is close to having the puppies - by a week or less, you should be taking her temperature and watching - it will drop a point or so about 24 hours before she delivers, and then go back up. Do you have all the 'stuff' you need to have these puppies? She should have newspaper to rip up, and a private room with NO intruders, a safe box to have her puppies in, and a big bol of puppy food for herself to feed her growing babies, along with a boiwl of fresh water all the time. You need to be prepared - and make sure you have everything you and she will need, the most important being communication with your vet when her temp dips so you know that your vet will be available when you need them.