There is always something going on in our nursery. Between backyard breeders and stray dogs that have not been spayed or neutered, sadly there will always be pregnant females and puppies showing up in the shelters.
By California law puppies can not be sold until 8 weeks of age. Until then they need their moms and siblings to teach them how to play and that biting hurts. They also need their siblings for socialization.
All our puppies stay with their moms and siblings until a minimum of 8 weeks old. When we make them available for adoption they have had two of their puppy shots, been spayed or neutered, and microchipped.