Don't you have a breeder as a mentor that you can ask these questions? I'm going to put this in health and hope you don't get flamed.
In the mean time, here are some articles you may find helpful (from simple google search you could have done yourself). Anything beyond this, you probably need to talk to your vet about.
Whelping Information
Pregnancy & Birth in Dogs - whelping and breeding information
Puppies: Newborn Puppy Care & Caring for Nursing Dogs
Care and Feeding of Bitches and Puppies
In the mean time, here are some articles you may find helpful (from simple google search you could have done yourself). Anything beyond this, you probably need to talk to your vet about.
Whelping Information
Pregnancy & Birth in Dogs - whelping and breeding information
Puppies: Newborn Puppy Care & Caring for Nursing Dogs
Care and Feeding of Bitches and Puppies