Dog Pregnancy Due Date Calculator
Calculate your dog pregnancy due date and key milestones.
Enter the first mating date to see the expected whelping timeline.
Pregnancy Timeline
Dog gestation typically lasts 63 days (about 9 weeks) from the date of ovulation.
Since mating may occur before or after ovulation, the actual range is 58-68 days from the first mating date.
Key milestones:
| Day | Milestone |
|---|---|
| Day 1 | First mating date |
| Day 7 | Embryos travel to uterine horns |
| Day 16 | Embryos implant in the uterine wall |
| Day 22 | Heartbeats visible on ultrasound |
| Day 28-30 | Vet can confirm pregnancy by palpation |
| Day 45 | X-ray can show puppy skeletons (count puppies) |
| Day 50 | Puppies can be felt moving |
| Day 58 | Earliest possible whelping |
| Day 63 | Expected due date |
| Day 68 | Latest normal whelping date |
Signs of approaching labor:
- Temperature drops below 99°F (37.2°C) — labor usually within 24 hours
- Nesting behavior (digging, rearranging bedding)
- Loss of appetite
- Restlessness and panting