PAWTRUSTYPet Health & Safety
Feline Obstetrics & Reproductive Veterinary Guidelines

Cat Pregnancy Calculator

Feline gestation tracking based on standard 63–65 day queens' reproductive timelines, highlighting palpation windows, ultrasound confirmation, and nesting care.

Cat Pregnancy (Feline Gestation) Calculator

Veterinary Feline Reproduction Timeline

64-Day Average
Estimated Queening Due Date
Dec 8, 2026
Normal Feline Window: Dec 5, 2026 to Dec 14, 2026 (Days 61–70)
Gestation ProgressDay 25 of 64
Nutrition Tip: Switch the queen to nutrient-dense kitten food during her final 3 weeks of pregnancy to support milk production.

Feline Gestation Milestones

Day 21: Nipple Pinking (Classic Sign)Oct 26, 2026

The queen's nipples turn bright rosy pink ('pinking-up') and hair thins around them.

Day 28: Veterinary Palpation & UltrasoundNov 2, 2026

A veterinarian can gently palpate grape-sized gestational sacs or confirm heartbeats on ultrasound.

Day 45: Skeletal Mineralization / X-RayNov 19, 2026

Kitten bone structures become visible on radiographs, providing exact count of kittens.

Day 55: Nesting Box PreparationNov 29, 2026

Place quiet nesting box in warm, low-traffic area. Provide clean towels and kitten-growth food.

Day 63: Active Labor CountdownDec 7, 2026

Queen purrs loudly, grooms excessively, and seeks solitude. Delivery begins within 24–48 hours.

How This Calculator Works

Unlike generic online rules-of-thumb that rely on unscientific myths, the Cat Pregnancy Calculator is strictly engineered around standards published by Feline Obstetrics & Reproductive Veterinary Guidelines.

All computations execute in volatile client-side browser memory in real-time, providing instant results without transmitting any personal pet data across third-party tracking servers.

Independent Veterinary Disclaimer:

This interactive tool is designed for educational guidance, preventive monitoring, and home care estimation. It does not substitute for licensed hands-on veterinary diagnosis, clinical physical exams, or emergency toxicology interventions.

Frequently Asked Questions

How long is a queen pregnant?

The normal gestation period for cats is approximately 63 to 65 days, with a normal range extending from 61 to 72 days.

What are early physical signs of cat pregnancy?

Around day 21, the queen's nipples often enlarge and turn a vivid rosy pink ('pinking-up'), followed by gradual abdominal distention and increased nesting affection.