Cat Pregnancy Calculator
Track your cat's pregnancy milestones and estimated due date
Estimated Due Date
Cats typically have a gestation period of 63-67 days
Pregnancy progress: 0%
Pregnancy Timeline
Care Tips for Your Pregnant Cat
Cat Pregnancy Calculator: Estimate Due Date & Kitten Birth Timeline
Is your cat pregnant? Use our free Cat Pregnancy Calculator to predict her due date, track weekly kitten development, and get expert care tips. Cats have a 63-67 day gestation period, and our tool helps you prepare for birth with a day-by-day timeline, vet checkup reminders, and emergency signs to watch for.
How to Use the Cat Pregnancy Calculator
Simply enter the mating date, and our tool will calculate:
- ✅ Estimated due date (63-67 days after mating)
- ✅ Weekly kitten development (embryo to birth)
- ✅ Vet visit reminders (when to check for pregnancy)
- ✅ Care tips (food, nesting, labor signs)
Cat Pregnancy Timeline (Week by Week)
Here’s what happens during your cat’s 9-week pregnancy:
Week 1-2: Fertilization & Early Development
- 🐱 Day 1-7: Sperm fertilizes eggs
- 🐱 Day 7-14: Embryos move to uterus
Week 3-4: Pregnancy Confirmation
- 🐱 Day 21: Vet can detect pregnancy via ultrasound
- 🐱 Day 28: Kittens’ organs form
Week 5-6: Visible Changes
- 🐱 Day 35: Belly grows, nipples pinken
- 🐱 Day 42: Feed 25-50% more food
Week 7-9: Preparing for Birth
- 🐱 Day 49: Nesting behavior begins
- 🐱 Day 63-67: Labor starts (kittens arrive!)
Cat Pregnancy FAQs
Q. How long is a cat pregnant?
Answer: A cat’s pregnancy lasts 63-67 days (about 9 weeks) from mating to birth. Smaller litters may arrive earlier, while larger litters may take up to 70 days.
Q. When can a vet confirm cat pregnancy?
Answer: A vet can detect pregnancy via ultrasound at 21 days or by palpation at 28 days. An X-ray can confirm kitten count after 45 days.
Q. What are the first signs of cat pregnancy?
Answer: Early signs include pink, swollen nipples (2-3 weeks), increased appetite, and behavioral changes (more affectionate or irritable).
Q. How many kittens will my cat have?
Answer: The average litter size is 4-6 kittens, but it can range from 1 to 12. An X-ray after day 45 gives the most accurate count.
Q. When should I worry about my pregnant cat?
Answer: Contact a vet immediately if your cat has no contractions after 24 hours of labor, bleeding without kittens, or stops eating for >24 hours.