The canine pregnancy timeline
Dogs are pregnant for about 63 days, or roughly nine weeks. The early weeks show few outward signs; by around day 30 appetite picks up, and in the second half the belly grows noticeably. From day 45 the puppies’ skeletons are visible on x-ray, and in the final week you’ll prepare the whelping box and watch for the temperature drop that signals labour.
Preparing for whelping
Set up a quiet, warm whelping box about a week before the due date so the mother can settle in. Have your vet’s and the nearest emergency clinic’s numbers ready, know the signs of trouble, and keep twice-daily temperature records in the last week. A drop below about 99°F (37.2°C) usually means puppies within 24 hours.
Frequently asked questions
- How long are dogs pregnant?
- Canine pregnancy averages 63 days from breeding, with a normal range of 58–68 days. Because the count really starts at ovulation — not the mating date — the actual due date can shift by several days either way.
- How do I know when my dog is due?
- Add about 63 days to the breeding date for an estimate, which this calculator does along with the 58–68 day window. For a precise date, a vet can time it from progesterone testing or confirm the stage by ultrasound and x-ray.
- What are the signs my dog is about to give birth?
- In the last day, dogs often become restless, nest, refuse food, and their body temperature drops below about 99°F (37.2°C) roughly 24 hours before labour. Twice-daily temperature checks in the final week help you catch it.
- When can a vet confirm pregnancy?
- Ultrasound can confirm pregnancy from around day 25–30, and an x-ray from about day 45 can confirm and count the puppies’ skeletons — useful for knowing how many to expect at whelping.
An estimate based on a 63-day average — your dog’s real due date depends on ovulation timing and can vary by several days. Work closely with your veterinarian throughout pregnancy and whelping, and call them at the first sign of any complication.