Whelping is the term given to the process of female dogs giving birth. It is a wonderful and fun time for the owner who has been anxiously awaiting 63 days of pregnancy to finally see the outcome!
The gestation period for dogs is 63 days, counted from when the female’s progesterone was about 5.0 ng/ml, or when she ovulated, and not 63 days from when she was bred. This is always a confusing fact and causes a lot of bitches to deliver sooner than what the owner calculated!!