🐶 Dog Pregnancy Calculator
Enter the date your dog was bred to see the expected whelping date and the normal range.
How the Dog Pregnancy Calculator works
Dogs are pregnant for about 63 days from breeding, with a normal range of roughly 58 to 68 days because the exact day of ovulation and fertilization varies.
Step-by-step calculation
- 1Enter the breeding date.
- 2Add 63 days.
- 3Show the 58–68 day normal range.
Worked example
A dog bred on March 1 is due around May 3, with whelping normally between April 28 and May 8.
Dog Pregnancy Calculator examples
| Breeding date | Expected whelping date |
|---|---|
| Jan 1, 2026 | Thursday, March 5, 2026 |
| Feb 15, 2026 | Sunday, April 19, 2026 |
| May 1, 2026 | Friday, July 3, 2026 |
| Jul 20, 2026 | Monday, September 21, 2026 |
| Nov 27, 2026 | Friday, January 29, 2027 |
Calculated as of January 1, 2026. Other inputs kept at the calculator's default values. Results calculated by this calculator.
Why use a Dog Pregnancy Calculator?
Prepare for puppies at the right time.
Important factors that can affect your results
- Multiple breedings change the date.
- Ovulation timing.
- Litter size.
Frequently asked questions
How can I confirm pregnancy?
A vet can confirm it by ultrasound from about day 25 or by X-ray after about day 45, which also counts puppies.
When should I call the vet?
If labor has not started by day 68, or if your dog strains for over 30 minutes without a puppy.
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Last reviewed November 2026 · How we build and check our tools · Report a problem