🤰 Dog Pregnancy Calculator & Due Date
Dogs are pregnant for about 63 days. Because ovulation and mating don’t always line up, puppies arrive anywhere from 58 to 68 days after mating. Enter the date to see the window and what happens when.
Why the due date is a window
The 63 days are counted from ovulation, which a mating date only approximates — sperm survive several days. Vets who time ovulation with blood tests can narrow the date to a day or two; from a mating date alone, plan for the full 58–68-day window.
The signs labour is near
In the last days she may nest, refuse food and pant. The most reliable sign is her rectal temperature dropping below about 99°F (37.2°C) — labour usually follows within 24 hours.
Frequently asked questions
How long are dogs pregnant?
About 63 days from ovulation — between 58 and 68 days from mating.
When can a vet confirm a dog is pregnant?
By ultrasound from about day 25. An X-ray from day 45 can count the puppies.
These calculators give general estimates for healthy pets. They are not veterinary advice — if your pet is unwell or has eaten something it shouldn’t, call your vet.