"Dog pregnancy" refers to the period of time when a female dog (a bitch) is carrying and growing puppies inside her body before giving birth. Full definition
For the first few weeks of dog pregnancy period you can continue feeding your pet a premium adult dog food. (nextgendog.com)
A female dog pregnancy is stressful for everybody in the household, including the dam herself, her breeders, and other pets at home. (breedingbusiness.com)
At 28 - 30 days into the suspected dog pregnancy, your veterinarian can perform a blood test to determine if your dog is indeed pregnant. (dog-health-guide.org)