Cat Due Date Calculator
Estimate your cat’s pregnancy due date and kitten arrival
Mating Date
Gestation Length
Cat Pregnancy Due Date Guide
Cat pregnancy (gestation) lasts approximately 63-65 days from the date of mating, with a normal range of 60-67 days. Our cat due date calculator gives you an estimated delivery date and a week-by-week breakdown of what to expect.
Cat Pregnancy Timeline Week by Week
| Week | What Happens | Care Tips |
|---|---|---|
| Week 1-2 | Fertilization, embryo implantation | No visible signs yet |
| Week 3 | Nipples pink and enlarge (“pinking up”) | Vet visit for confirmation |
| Week 4-5 | Belly enlarges, morning sickness possible | Switch to kitten food |
| Week 6-7 | Kittens move, visible belly movement | Prepare nesting box |
| Week 8-9 | Nesting behaviour, restlessness | Monitor temperature, vet on standby |
How to Prepare for Kittens
- ✅ Set up a quiet, warm nesting box lined with soft towels
- ✅ Switch mother to high-calorie kitten food from week 4
- ✅ Increase food gradually — up to 2x normal by week 9. Use our cat calorie calculator for nursing mothers
- ✅ Keep other pets and children away from the nesting area
- ✅ Have your vet’s emergency number ready
- ✅ Weigh kittens daily after birth to ensure healthy gain
FAQs
How long is a cat pregnant?
The average cat pregnancy lasts 63-65 days from conception. Births before 60 days may result in premature kittens. If no birth occurs by day 67, contact your vet.
How many kittens does a cat have in a litter?
The average litter size is 2-5 kittens. First-time mothers tend to have smaller litters of 1-3 kittens. Older, experienced mothers may have up to 8.
When should I take my pregnant cat to the vet?
Ideally at week 3-4 to confirm pregnancy via ultrasound, and again around week 6-7 for a kitten count. A blood test can also check for infections or nutritional deficiencies.
Conclusion
Use our cat due date calculator to stay prepared for your cat’s big day. Combine it with our calorie calculator to ensure your pregnant or nursing cat gets the nutrition she needs. Once the kittens arrive, our cat age calculator will help you track their development every step of the way.
Expecting kittens? Share your excitement in the comments!