Dog Pregnancy Calculator
Enter the date your dog was mated or inseminated to estimate her due date and pregnancy stage. This simple dog pregnancy calculator uses a 63-day gestation guide for most bitches.
Pick the main mating date. If there were several ties, choose the middle or last strong date.
How this dog pregnancy calculator works
Most dogs whelp around 63 days after conception, with a normal range of a few days either side. The calculator adds 63 days to your mating date and shows an estimated whelping day.
It also counts how many days pregnant your dog is today and how many days remain until the due date. From that, the tool labels the stage as early, mid, late, or past due and adds a short care tip.
Frequently Asked Questions
The date is only an estimate. Ovulation timing, litter size, and breed can move whelping a few days earlier or later than the result you see.
Choose the middle or last strong tie as the date you enter. Many breeders also work with progesterone tests or scans to refine the window.
Call your vet if your dog seems unwell, labor starts and stops, or you see green discharge before the first pup. If she goes past the due window with no signs of labor, ask for a check as soon as you can.