Cat pregnancy calculator
Enter the date your cat mated, or your best guess, and this cat pregnancy calculator estimates the cat due date and what to expect each week. How long are cats pregnant? About 63 to 65 days.
Free calculator · Based on vet sources
Cat pregnancy week by week
- Day 1Mating. You won’t see any changes yet.
- Day 15Nipples start to turn pink and enlarge (“pinking up”), around weeks 2 to 3.
- Day 21A vet can often confirm pregnancy by ultrasound from about 3 weeks, or by feeling the belly.
- Day 35Her belly is visibly rounder. Appetite increases; switch to kitten food if your vet agrees.
- Day 45Kitten skeletons show on X-ray, so your vet can count them.
- Day 56She starts looking for a quiet nesting spot. Set up a warm, private box.
- Day 63Most cats give birth between days 63 and 65.
Signs of labor, and when to call the vet
In the last day or two she may get restless, pace, stop eating and head to her nest. Most cats deliver without help.
How long are cats pregnant?
Cats are pregnant for about 63 to 65 days, or roughly 9 weeks. A normal pregnancy can range from about 58 to 67 days.
What are the signs of labor in cats?
In the last day or two she may become restless, pace, nest, stop eating, groom her belly a lot and vocalize. Kittens usually arrive 10 to 60 minutes apart once strong contractions start.
Dates are estimates. Your vet can confirm the pregnancy and give a more accurate due date with ultrasound or X-ray.
More free tools
Cat age calculator
Your cat’s age in human years, with a full age chart.
Plant scanner
Snap a photo of a plant to see if it’s toxic to cats.
Food scanner
Photograph a food to check whether your cat can eat it.