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Cat Pregnancy Calculator
Enter the mating date to calculate due date and weekly care tips
Mating Date
Average cat gestation: 63–65 days
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Enter a mating date to see results
Pregnancy Stages
Early Stage
Day 1–21Implantation occurs and nipples begin to turn pink.
- •Consider switching to high-protein diet
- •Avoid intense exercise
- •Schedule vet checkup (ultrasound)
Middle Stage
Day 22–42Belly expands and weight increases. Kittens can be counted via ultrasound.
- •Gradually increase food (1.5x normal)
- •Consider kitten/pregnancy formula
- •Maintain a calm environment
Late Stage
Day 43–56Mammary glands develop and nesting behavior begins.
- •Prepare a nesting box (quiet, warm place)
- •Food intake may double
- •Offer small frequent meals
Pre-Birth
Day 57–65Body temperature drops below 37.8°C, birth is imminent.
- •Monitor temperature every 24 hours
- •Encourage staying in nesting box
- •Have emergency vet contact ready
⚠️ Disclaimer: This calculator provides estimates based on average feline gestation. Individual cats may vary. Always consult your veterinarian for professional guidance during pregnancy.

