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Dog Pregnancy Calculator & Due Date
Enter the date your dog was mated. If she was mated more than once, use the first date. The calculator shows the expected due date, the normal window and key checkpoints.
How long are dogs pregnant?
According to VCA Animal Hospitals, pregnancy in dogs normally lasts 57 to 65 days, with an average of 63 days from mating. When the date of ovulation is known from progesterone blood tests, the due date can be predicted more precisely (about 63 days from ovulation).
Due date ≈ mating date + 63 days
Normal window = mating date + 57 to 65 days
Dog pregnancy timeline
| When | What happens |
|---|---|
| Week 3–4 | A vet may feel swellings; abdominal ultrasound can confirm pregnancy, and scans after day 28 are usually reliable. |
| Week 7 (last two weeks) | An X-ray is the most accurate way to count puppies, so you know when whelping is finished. |
| Final week | Prepare a quiet whelping box; she may nest and eat less. |
| Labor | Call your vet if she strains hard without producing a puppy, seems very weak or in great pain, or has a green or bloody discharge before the first puppy. |
This tool gives an estimate for healthy pets. It is not a diagnosis. Your veterinarian knows your pet and should guide any change in diet, weight or care.
Frequently asked questions
How long is a dog pregnant in weeks?
About 9 weeks (63 days), with a normal range of 57–65 days from mating.
When can a vet confirm my dog is pregnant?
Ultrasound can show a pregnancy from about 3 weeks, and scans after day 28 are usually reliable.
How can I tell how many puppies my dog will have?
An X-ray in the last two weeks of pregnancy (around week 7) is the most accurate way to count puppies.