How much does she weigh? Did your vet look at her before breeding? Do you have access to a vet 24/7? She needs to be xrayed on around day 55 to see the size and postion of the pups.
You have about a month to spend every waking moment learning. I would try to find someone close that breed toy dogs that would be willing to come over and lend a hand. How will you know if something goes wrong? That is why you need to reasearch as much as possible to learn the warning signs. Start here
Dog Breeding and Canine Reproduction by Debbie Jensen. Dog Breeding and Whelping guide for dog breeders.
Whatever you do don't leave her alone. I break the sacks, cut the cords, suction them out, get them crying and breathing before giving back to mom. I have had mom's push them out no problem and then I take over...but I have also had some that I had to help mom get them out. I would rather give birth myself it wasn't nearly as nerve racking.
I will pm you my phone number. You can call me anytime day or night.