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Gestation & Due-Date Calculator

Enter a mating date and species to see the due-date window and key milestones.

Species

Estimated due date

Sat, 28 Nov 2026

Likely window: Thu, 26 Nov 2026 → Mon, 30 Nov 2026

Average gestation for cat: 65 days (63–67)

Key milestones

  1. Day 21ThuNipples "pink up"; vet can palpate
  2. Day 28ThuUltrasound confirms pregnancy
  3. Day 42ThuX-ray gives accurate kitten count
  4. Day 60MonSet up the nesting box

Gestation lengths vary by breed and individual. Use this as a planning guide and confirm with your veterinarian.

Preparing for a birth? Read our guides on cat pregnancy and dog whelping.

Track every pregnancy automatically

AllBreeds counts down to every birth with milestones and reminders across your whole program.

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