My dog is pregnant

Ask your veterinarian. And, once the puppies are old enough to be sold or given away, get your dog spayed. There are loads and loads and loads of dogs in the world, and you are clearly not an experienced professional breeder. Right now, all you're doing is contributing to the dog population explosion, no matter how lovely your dog is or how cute the puppies are.

Get your dog spayed. It's the responsible thing to do.

Hope your dog and her children healthy.