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Home/Tools/Whelping due date

When is my litter due?

Gestation runs about 63 days in dogs and 65 days in cats, counted from the date bred. Enter that date and we will map out the due date plus the key milestones along the way - when to confirm the pregnancy, bump up food, set up the nesting box and watch for labour.

Use the mating date. If there were several, use the first for the earliest possible date.
Estimated due date - enter a date bred to see the timeline

Milestones:

Confirm pregnancy: -

Start increasing food: -

Set up whelping / nesting box: -

Watch for labour: -

🩺 Pregnancy length varies by a few days from litter to litter. A vet check with ultrasound (around day 25-30) or x-ray (late in pregnancy) is the only reliable way to confirm dates and count the litter. This is a planning estimate, not a substitute for veterinary care.

Problem solver →

⚠️ These dates are calculated from a typical gestation length and assume a known, single mating date. Real pregnancies can arrive a few days either side. Book a vet appointment early - ultrasound and x-ray confirm the pregnancy, the due date and how many puppies or kittens to expect, and give you a plan if anything goes wrong during whelping.

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