How long are cats pregnant?
Cat pregnancy (gestation) lasts about 63 to 65 days — roughly nine weeks. The normal range runs from around 61 to 72 days from mating, so a due date is best read as a window.
Week-by-week timeline
Fertilisation and early development. Around week 3 the nipples may “pink up” and become more prominent.
A vet can often confirm pregnancy by ultrasound. Appetite increases and the belly begins to round.
The kittens grow quickly; you may feel movement. The queen eats more and seeks out quiet spots.
Nesting begins in earnest. Restlessness, reduced appetite, and milk are signs that labour is near.
Work with your vet through your cat’s pregnancy — they can confirm dates and flag any complications. This tool is a guide, not medical advice.
Once the kittens arrive, our new kitten checklist covers those crucial first days.
Frequently asked questions
How long are cats pregnant?
Cats are pregnant for about 63 to 65 days on average (roughly nine weeks), with a normal range of around 61 to 72 days from mating.
How can I tell if my cat is pregnant?
Early signs include the nipples becoming pink and enlarged (“pinking up”) around three weeks, a growing belly, increased appetite, and nesting behaviour. A vet can confirm with ultrasound.
How accurate is a cat due-date calculator?
It gives a good estimate from the mating date, but the true date can vary because conception may not align exactly with mating. Your vet can confirm timing during a check-up.