Cat Pregnancy Calculator
Plan for your cat's pregnancy with precision
Calculate when your cat is due to give birth with this feline pregnancy calculator. Enter the date of the first mating below and you will be given expected pregnancy dates so you can prepare for queening.
Expected Due Dates:
The estimated due date is 65 days from the first mating, which is the length of gestation in felines. The expected dates indicate the earliest and latest expected dates of delivery. Dates may vary in some instances.
Your Cat's Pregnancy Timeline:
Cat Pregnancy Calculator
Estimate your cat’s due date easily by entering the mating or ovulation date.
Cats typically have a gestation period of around 63–65 days. This tool helps breeders and pet owners track pregnancy milestones, monitor development, and prepare for queening (the term for a cat giving birth).
Important: Always confirm pregnancy and timing with a veterinarian for the most accurate planning and care.
How to Use the Cat Pregnancy Calculator
Using the cat pregnancy calculator is quick and simple. You’ll need just one key detail: the date of mating or ovulation.
Steps to follow:
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Select the mating or ovulation date:
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Choose the exact date your cat was bred.
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If multiple mating sessions occurred, use the earliest date.
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Click on “Calculate Due Date”:
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The tool will estimate the expected queening window, typically between 63–65 days later.
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Review the pregnancy timeline:
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You’ll see a breakdown of trimester stages, fetal development milestones, and estimated queening date.
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Tip: Use the calculator’s estimate alongside veterinary ultrasounds (typically around day 21–28) for the most reliable results.
What Is the Average Cat Gestation Period?
The average cat gestation period is 63–65 days after ovulation. However, this can vary slightly depending on factors like breed, litter size, and individual health.
| Breed Size | Average Pregnancy Length |
|---|---|
| Small/Short-haired breeds | 62–64 days |
| Medium breeds | 63–65 days |
| Large/Long-haired breeds | 64–67 days |
Note: Sperm can survive in the female reproductive tract for up to 5 days, so accurate timing depends on identifying ovulation, not just mating.
What Is the Cat Pregnancy Timeline?
Feline pregnancy progresses through clear biological stages. Each stage includes specific fetal developments and observable changes in the mother.
| Stage | Timeframe (Days) | Description |
|---|---|---|
| Fertilization | Day 1 | Eggs are fertilized in the fallopian tubes. |
| Embryo Implantation | Days 12–14 | Embryos implant in the uterine wall. |
| Organ Development | Days 20–30 | Heart, brain, and spinal cord begin to form. |
| Physical Changes | Days 30–45 | Abdomen expands; nipples enlarge and pinken. |
| Rapid Fetal Growth | Days 45–60 | Kittens grow rapidly and shift position. |
| Queening Preparation | Days 60–65 | Nesting behavior increases; milk glands fill. |
Key Point: Most vets recommend ultrasound or palpation exams around day 21–28 to confirm pregnancy and count embryos.
Do Different Cat Breeds Have Different Pregnancy Lengths?
Yes, pregnancy duration can vary slightly by breed and body type. While the typical range is 63–65 days, some long-haired or larger breeds may carry kittens slightly longer.
| Breed | Gestation Range |
|---|---|
| Siamese | 63–65 days |
| Persian | 64–67 days |
| Bengal | 62–64 days |
| Maine Coon | 64–67 days |
| Domestic Shorthair | 63–65 days |
Insight:
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Smaller breeds often deliver closer to day 63.
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Larger or long-haired breeds may go to day 67, but pregnancies lasting beyond that should be monitored closely.
What Are the Signs of Pregnancy in Cats?
Cats begin showing both physical and behavioral signs of pregnancy around the third week. These signs are relatively consistent, though some may vary with breed and temperament.
Physical Signs:
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“Pinked up” nipples (enlarged and red/pink) around day 18–21
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Mild weight gain after week 3
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Visible belly bulge around week 5–6
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Clear discharge from the vulva late in pregnancy
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Palpable kittens by a vet around day 20–30
Behavioral Signs:
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Increased affection or clinginess
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Appetite changes (some lose it early, most increase mid-pregnancy)
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Restlessness or nesting behavior in the final week
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Seeking out quiet, warm places for birth
How to Prepare for a Cat’s Delivery (Queening) at Home
Being prepared before your cat goes into labor helps reduce stress for both you and your cat. Here’s how to set up a comfortable and safe birthing environment:
1. Create a queening area:
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Choose a quiet, warm, low-traffic room.
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Use a large cardboard box or a clean pet bed lined with soft towels or blankets.
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Keep it away from noise, other pets, and bright lights.
2. Monitor her behavior in the final week:
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Look for signs like nesting, pacing, excessive grooming, and hiding.
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Most cats prefer privacy when queening—avoid disturbing her during early labor.
3. Prepare basic supplies:
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Clean towels
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Disposable gloves
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Blunt-tip scissors (in case of emergency cord-cutting)
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Heating pad (set to low)
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Vet’s phone number on standby
4. Post-birth care:
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Ensure all kittens begin nursing within 1 hour.
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Monitor the mother for signs of distress or retained placenta.
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Keep the environment warm (above 25°C) for the first week.
When to Visit the Vet During Cat Pregnancy
Veterinary checkups can help detect issues early and provide reassurance for a healthy delivery.
| Stage | Reason for Visit |
|---|---|
| Day 21–28 | Ultrasound to confirm pregnancy |
| Day 45+ | X-ray to count kittens and check size |
| Final week | Monitor for queening readiness and complications |
| Post-birth | Examine kittens and mother for any health concerns |
Note: Go to the vet immediately if your cat shows signs of bleeding, lethargy, labor lasting over 24 hours, or no kitten delivery within 1 hour of strong contractions.
Check Out Our Other Animal Pregnancy Calculators
Looking after more than just cats? Use our tailored pregnancy calculators for different animals to estimate due dates accurately and manage prenatal care confidently.
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Sheep Pregnancy Calculator
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Buffalo Pregnancy Calculator
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Cow Pregnancy Calculator
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Pig Pregnancy Calculator
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Horse Pregnancy Calculator
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Camel Pregnancy Calculator
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Rabbit Pregnancy Calculator
Each calculator includes species-specific timelines, gestation stages, signs to watch for, and tips for safe birthing preparation.
Frequently Asked Questions
Can I bathe my pregnant cat?
A: It’s best to avoid unnecessary stress. If needed, use a damp cloth to clean her gently, or dry shampoo recommended by your vet.
How many kittens can a cat have?
A: Most cats deliver 4 to 6 kittens, but litters can range from 1 to 9 depending on breed, age, and health.
What should I feed a pregnant cat?
A: High-quality kitten food (wet or dry) is ideal due to its higher calorie and protein content. It supports both the mother and developing kittens.
My cat is overdue. What should I do?
A: If your cat hasn’t delivered by day 67, contact your vet. Delays could signal complications requiring immediate attention.
Can cats experience false pregnancy?
A: Yes. Hormonal changes can mimic pregnancy symptoms, but no kittens develop. A vet can confirm a real pregnancy through ultrasound or palpation.
