Quick answer: Cats are pregnant for about 65 days, or just over nine weeks. Most give birth 64 to 66 days after mating. Enter the mating date in the cat pregnancy calculator above to see your cat’s due date and key dates.
How long are cats pregnant?
The average cat gestation period is about 65 days, which is roughly nine weeks or a little over two months. Most queens, as female cats are called, deliver between day 64 and day 66 after mating.
You may see shorter figures, such as 60 to 65 days, elsewhere. That gap comes from counting. Owners often do not know the exact day their cat mated, especially if she goes outside.
Why is a cat’s due date easier to predict than a dog’s?
The pregnancy cycle of cats starts differently from a dog’s. Cats are induced ovulators. They release eggs only after mating, usually within a day or two. So the mating date sits very close to conception, and the due date window is narrow.
Dogs are different. They ovulate on their own schedule, and sperm can wait days for the eggs. That is why a dog’s pregnancy length has a much wider normal range.
How long is a cat pregnant in weeks and months?
The gestation period for cats converts like this:
| Days after mating | Weeks | Months |
|---|---|---|
| 64 days | 9 weeks, 1 day | About 2.1 |
| 65 days | 9 weeks, 2 days | About 2.1 |
| 66 days | 9 weeks, 3 days | About 2.2 |
Cat pregnancy week by week: the three stages
- Weeks 1–3: the embryos settle into the uterus. Most cats look and act normal.
- Weeks 4–6: a vet can feel the kittens or see them on an ultrasound from about day 21 to 30. Her belly starts to round out.
- Weeks 7–9: the kittens grow quickly. She eats more, gains weight and starts looking for a quiet nest.
How can I tell how far along my cat is?
If you know the mating date, the calculator above gives you the day count. If you do not, a vet can estimate it. An ultrasound from about day 21 shows the kittens, and their size helps place her in the pregnancy. After day 55, an X-ray shows the skeletons and gives the best count of kittens.
Not sure she is pregnant yet? See how to tell if your cat is pregnant.
What does a cat look like at 7 weeks pregnant?
By week 7 her belly is clearly rounder, especially when seen from above or the side. She is heavier, eats more and may start sleeping in closets, boxes or other hidden spots. Her nipples are larger, and in the last week some milk may appear.
How do you know when a cat is about to give birth?
In the last day or so, she may hide, nest, pace, pant, stop eating or vomit. This first stage of labor usually lasts 12 to 24 hours. Then visible straining starts, and kittens normally arrive less than one to two hours apart.
Call your vet if she strains for a long time with no kitten, if more than one to four hours pass between kittens while she is straining, if labor lasts more than 24 hours, or if she seems very distressed. These are the warning signs listed in the veterinary guide to cat reproduction.
How to care for a pregnant cat
- Book a vet check about three to four weeks after mating.
- Feed a good kitten-growth food as your vet advises. Most cats need about 25% more food in the last three weeks.
- Keep her indoors and away from other cats in the second half of pregnancy.
- Set up a warm, quiet box with clean towels a week or two before her due date.
- Ask your vet before giving any flea, worm or other treatment.
Planning around her next heat instead? Read our guide to the cat heat cycle.
Frequently asked questions
Can a cat be pregnant for 70 days?
Cats rarely stay pregnant much past day 66, but a few extra days can happen, especially if the mating date is a guess. If she reaches about day 70 with no labor, or seems unwell at any point, call your vet.
How early can a cat give birth safely?
Kittens born well before about day 60 are at risk because their lungs may not be ready. Call your vet if she goes into labor early.
Can a cat get pregnant while nursing?
Yes. A cat can come back into heat within weeks of giving birth, even while she is feeding kittens. Keep her away from intact males until she is spayed or you are ready for another litter.
Do indoor cats have a different pregnancy length?
No. Indoor cats may come into heat all year, but once pregnant they carry for the same 64 to 66 days.
Can a cat be pregnant by more than one father?
Yes. Because she ovulates after mating and may mate with several males in one heat, kittens in the same litter can have different fathers.
How long after mating should I see a vet?
About three to four weeks after mating. That is when a vet can usually confirm the pregnancy by feeling her belly or with an ultrasound.