How long is a Boston terrier pregnant before giving birth?

Answer 1

Gestation Period For DogsThe gestation period for dogs is 63 days. Most people think this is 63 days from the day that the dogs are bred. However, it is 63 days from the day the Dam ovulates. It still is very close to the day tho that most people mark down that the Dam and Sire breed. If you are unsure as to what day your Dam ovulated, be sure to count 63 days from the breeding day to expect your fun loving liter of pups!