Use this calculator to estimate how many weeks pregnant your dog is based on the mating date.
Most canine pregnancies last approximately 63 days.
Quick answer: Most dogs are pregnant for about 63 days, and this calculator helps you estimate the current week and expected due date from the mating date.
Dog Pregnancy Timeline
Week 1–2: Fertilization and embryo development
Week 3–4: Embryo implantation and early growth
Week 5–6: Rapid puppy development
Week 7–8: Noticeable abdominal enlargement
Week 9: Delivery preparation and whelping
Why Track Pregnancy Weeks?
Knowing your dog's current pregnancy stage can help you prepare for veterinary visits, nutritional changes, and the arrival of puppies.
Frequently Asked Questions
How long is a dog pregnancy?
Most dog pregnancies last approximately 63 days from conception.
Can the due date vary?
Yes. Actual delivery dates may vary by several days depending on breed and individual factors.
When can a veterinarian confirm pregnancy?
Pregnancy can often be confirmed by ultrasound around 25 to 30 days after breeding.