How long is a cat pregnant?
Cats are pregnant for about 63 to 65 days, nine weeks, with normal births from about day 61 to day 67. Because cats ovulate when they mate and often mate several times over a few days, the exact start date can be uncertain by a day or two.
Due date = mating date + 64 days
| Week | What you may notice |
|---|---|
| 2 to 3 | Nipples turn darker pink and larger ("pinking up") |
| 4 | Vet may feel kittens; ultrasound confirms |
| 5 to 6 | Belly grows, appetite rises |
| 7 to 8 | Nesting, restlessness; kittens visible on X-ray |
| 9 | Labor |
Sample kitten due dates
| Bred | Due (day 64) | Earliest (day 61) | Latest (day 67) |
|---|---|---|---|
| Jan 15, 2026 | Mar 20, 2026 | Mar 17, 2026 | Mar 23, 2026 |
| Mar 15, 2026 | May 18, 2026 | May 15, 2026 | May 21, 2026 |
| May 15, 2026 | Jul 18, 2026 | Jul 15, 2026 | Jul 21, 2026 |
| Jul 15, 2026 | Sep 17, 2026 | Sep 14, 2026 | Sep 20, 2026 |
| Sep 15, 2026 | Nov 18, 2026 | Nov 15, 2026 | Nov 21, 2026 |
| Nov 15, 2026 | Jan 18, 2027 | Jan 15, 2027 | Jan 21, 2027 |
See cat pregnancy week by week and the signs of cat pregnancy.
How can I tell if a cat is pregnant?
The first visible sign is pinking up: around weeks 2 to 3 her nipples turn darker pink and enlarge. Weight gain, a rounder belly from about week 5, a bigger appetite and nesting follow. A vet can confirm by ultrasound from about day 25.
Frequently asked questions
How long is a cat pregnant?
About 64 days on average, normally 61 to 67 days.
How many kittens do cats have?
Usually 4 to 6, though first litters are often smaller.
Can a cat get pregnant again right after giving birth?
Yes. Cats can come back into heat a few weeks after giving birth, even while nursing.
How long does a cat pregnancy last?
About 63 to 67 days, which is nine weeks. This calculator uses 64 days with a window of 61 to 67.
When do cat pregnancy signs start?
Pinking up of the nipples usually appears around week 3. Nausea and a swelling belly follow around week 4.
Reference charts
- Dog Pregnancy Calendar
- Cat Pregnancy Calendar
- Rabbit Gestation Chart
- Signs of Cat Pregnancy
- Cat Pregnancy Week by Week
More gestation calculators
Cow Gestation Calculator
Calving date by breed, with the normal window.
Horse Gestation Calculator
Foaling date with the 320 to 370 day window.
Goat Gestation Calculator
Kidding date for dairy, meat and pygmy goats.
Sheep Gestation Calculator
Lambing date for ewes, with the normal window.
Dog Pregnancy Calculator
Whelping date with week-by-week milestones.
Rabbit Gestation Calculator
Kindling date and nest box date.