Cat Gestation Calculator
Enter the breeding date to calculate your cat's expected due date. Cat pregnancy lasts 63-67 days with an average of 65 days.
Due Date Estimate
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Earliest (Day 63)—
Expected (Day 65)—
Latest (Day 67)—
Progress—
How Long Are Cats Pregnant?
Cat pregnancy (gestation) lasts 63-67 days, averaging 65 days from mating. Queens can become pregnant as young as 4 months. Average litter size is 4-6 kittens.
Cat Pregnancy Timeline
| Week | Development |
|---|---|
| 1-2 | Fertilization, embryo travels to uterus |
| 3 | Implantation, nipples pink ("pinking up") |
| 4 | Morning sickness possible, vet can palpate |
| 5-6 | Belly swells, increase food 25% |
| 7-8 | Kittens fully formed, movement visible |
| 9 | Nesting, milk production, delivery |