Welcome to Yorkietalk, we have a breeding section.
Breeder Talk - YorkieTalk.com Forums - Yorkshire Terrier Community. I hope you consider spaying your girl after she has her pups. There are so many dogs in rescues and shelters, the only reason to breed is to preserve and improve the breed. I really wish you good luck and hope your little girl makes it. This article might be helpful.
Canine Reproduction Video and Book on Breeding and Whelping dogs by Debbie Jensen for dog breeders and Whelping Supplies needed to deliver puppies.