Dog Pregnancy Calculator
Estimate when your dog's puppies are due, plus the key milestones of canine pregnancy.
Your result
Estimated due date (day 63)
Thu, March 5, 1970
Normal whelping window
Sat, February 28, 1970 – Tue, March 10, 1970
Vet ultrasound possible from (day 25)
Mon, January 26, 1970
X-ray puppy count from (day 45)
Sun, February 15, 1970
Prepare whelping box by (day 55)
Wed, February 25, 1970
How long are dogs pregnant?
Canine pregnancy (gestation) lasts about 63 days from ovulation, but because sperm can survive several days and ovulation timing varies, puppies are commonly born between day 58 and day 68 after mating.
Your vet can confirm pregnancy by ultrasound from around day 25 and count puppies on an X-ray after about day 45. This calculator gives estimates only — always involve your vet.