How Many Litters Can a Dog Have?

Most dogs that have undergone puberty or are undergoing puberty may have up to two litters per year starting from 5 to 12 months of age. Smaller or larger litter sizes are related to the various sizes of different breeds, states

A typical canine pregnancy can last anywhere from 58 to 68 days after a dog is bred, and the average litter size is six to 10 puppies, according to

A female dog may continue to experience "heat" approximately every six months until late in the dog's life, while a male may breed at will from sexual maturity to late in life, states the American Kennel Club.