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WhelpCare
🐱 Easy Cat Pregnancy & Due Date Calculator

Cat Pregnancy Calculator & Due Date Schedule

Find your queen's expected kitten due date in 3 easy steps. See week-by-week vet ultrasound dates, kitten growth, labor signs, and birth milestones.

Step 1 of 3
Step 2 of 3
Select breed for tailored timing
Quick set:
3 Step 3: Expected Due Date & Timeline
● Standard Timeline
Expected Delivery Due Date 65 Days
Calculating...
Normal Safe Window: Day 63 to Day 67 Healthy kittens normally arrive between Days 63 and 67 from mating.
Stage 1: Early Kitten Growth 45 Days Remaining
Week 3 β€’ Day 21 of 65 (32%) Birth Day πŸŽ‰
🐾 What to Look For Today (Day 21)
Care Guide

Nipples become distinctly pinker and firmer ('pinking up'). Queen exhibits affectionate, calm behavior.

🐟 Food & Nutrition Guide
Normal Feeding

Feed high-protein adult maintenance food with plenty of fresh water. Caloric transition to nutrient-dense kitten formula begins at Week 6 (Day 42).

Critical Veterinary Milestones for This Pregnancy

Day 21 – 25
🩺 Vet Ultrasound
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Pinking up & viable sacs
Day 28 – 32
🀲 Vet Palpation
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Walnut-sized kitten sacs
Day 42 – 45
🐟 Kitten Food Shift
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+35% calorie density
Day 63 – 67
πŸ“¦ Delivery & Birth
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Nesting closet & purring
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Never Miss a Critical Milestone

Free Smart Concierge

Get date-aware alerts for Vet Ultrasounds, Diet Transitions, and Emergency Protocols directly to your inbox.

πŸ”’ 100% Free & Private. We only send helpful alerts when your pet reaches a new pregnancy milestone. Unsubscribe anytime with 1 click.

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Interactive Queening Kit Checklist

Check off essential supplies to prepare 2 weeks before your cat's queening date.

Pack Status 0 of 8 Packed
🐾 Plain & Simple Pet Parent Guide

How Long Are Cats Pregnant? (The 65-Day Feline Rule Explained Simply)

The average pregnancy length for a domestic cat (queen) is 65 days (about 9 weeks or just over 2 calendar months). However, healthy kittens can arrive safely anywhere between Day 63 and Day 67 from the day mating occurred.

Unlike dogs, female cats are induced ovulators. This means the mother cat releases her eggs only after mating takes place. If she mated multiple times over 2 to 3 days, an ultrasound scan around Day 21 gives the exact baseline day.

πŸ’‘ Want an exact 48-hour delivery window?

Ask your veterinarian for a gentle ultrasound scan between Day 21 and Day 28. This scan confirms kitten heartbeats and pinpoints your expected delivery window with high precision.

Does My Cat's Breed Change Her Pregnancy & Delivery?

While most cats deliver close to Day 65, breed size and body shape introduce important care details:

🌸 Flat-Faced Breeds (Persian, Exotic)

Care Watch

Flat-faced kittens have tiny nostrils. Have a soft baby bulb syringe ready to gently suction fluids from their noses so they breathe easily right after birth.

Typical Gestation: 64–66 Days β€’ Litter: 3–5 kittens

🦁 Large Breeds (Maine Coon, Ragdoll)

Slow Maturing

Large, slow-growing cats often carry kittens 1 to 2 days longer (up to Day 67). Make sure her nesting box has plenty of floor space for her large body and litter.

Typical Gestation: 65–67 Days β€’ Litter: 4–7 kittens

🌿 Lean Active Breeds (Siamese, Oriental)

Quick Delivery

Fine-boned, active cats frequently whelp early (around Day 63 or 64). They are famously affectionate and will purr loudly to let you know labor is starting.

Typical Gestation: 63–65 Days β€’ Litter: 4–6 kittens

πŸ”₯ Hairless Breeds (Sphynx)

Keep Warm

Without fur, hairless kittens lose body heat in minutes. Keep the birthing room warm (85Β°F / 29Β°C) with a low-heat heating pad under half of her box.

Typical Gestation: 63–65 Days β€’ Litter: 3–5 kittens

How Can I Tell If My Cat is Pregnant? (Week-by-Week Signs)

Weeks 1 to 2 (Days 1–14): Conception & Implantation

Embryos gently travel to the uterine horns. Your cat will act completely normal, relaxed, and happy.

Week 3 (Days 15–21): The "Pinking Up" Stage

Her nipples turn brighter pink and swell slightly as fur recedes. This is the first clear physical indicator of cat pregnancy!

Weeks 4 to 6 (Days 22–42): Tummy Widening & Vet Exam

Her waistline thickens visibly into a pear shape. Start gradually adding calorie-rich kitten food to her meals.

Weeks 7 to 9 (Days 43–65): Nesting, Purring & Kitten Birth

Kitten kicks are easily felt when she sleeps. She will look for a quiet, cozy closet or nesting box to give birth.

🚨 Emergency Signs: When to Call the Vet Immediately

  • Strong, hard contractions last for more than 30 minutes without producing a kitten.
  • More than 2 hours pass between kittens when you know more are inside.
  • Dark, foul-smelling, or dark green discharge appears before any kitten is born.
  • The mother cat appears exhausted, weak, or running a high fever (>103Β°F / 39.4Β°C).

Quick Comparison: Pregnancy Length Across Animals

🐢 Dog (Canine) ~63 Days About 9 weeks (2 months)
🐱 Cat (Feline) ~65 Days Range: 63 to 67 days
🐴 Horse (Equine) ~340 Days About 11 full months!

Frequently Asked Questions About Cat Pregnancy

Can a cat get pregnant while nursing another litter? β–Ό

Yes! Queens can return to heat within 2 to 4 weeks after giving birth, even while nursing newborn kittens. To prevent back-to-back litters, keep nursing mothers indoors away from unneutered male cats.

How many kittens are in an average feline litter? β–Ό

The average cat litter size is 4 to 6 kittens. First-time mothers and older queens often have 1 to 3 kittens, while large breeds like Maine Coons can comfortably have 6 to 8 kittens.

Do cats get morning sickness during early pregnancy? β–Ό

Yes, some cats experience mild nausea or a brief appetite drop around Week 3 or 4 due to hormonal changes. If vomiting lasts more than 24 hours, check with your vet.

How do I save or print my cat's pregnancy schedule? β–Ό

Simply click the blue "Print / Save Due Date Schedule (PDF)" button in Step 3 above. It generates a clean, official 1-page certificate with all your dates and emergency supplies ready to print or save!

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Veterinary Guidelines Reviewed Formulas aligned with standard veterinary canine, feline & equine reproductive biology.