Pregnancy Calendar (Species-Specific)
Enter the mating date and pick your species — dog, cat, rabbit, guinea pig, hamster, ferret, horse, goat, or sheep — and get a personalized pregnancy calendar with due date, trimester markers, vet-check milestones, and nesting-prep deadlines. Dogs (63 days), cats (65 days), rabbits (31 days), horses (340 days) — each species has a distinct gestation length and a different rhythm of physical and behavioral changes. Knowing what to expect week by week is the difference between a smooth delivery and a preventable emergency.
Expected due date
Oct 3, 2026
First trimester ends Aug 22, 2026 · nesting prep by Sep 23, 2026
- Day 21Aug 22, 2026Nipples enlarge, appetite may drop briefly
- Day 28Aug 29, 2026Vet ultrasound confirms pregnancy
- Day 45Sep 15, 2026X-ray can count puppies (skeletons visible)
- Day 55Sep 25, 2026Set up whelping box, isolate mom
- Day 60Sep 30, 2026Rectal temp 2x daily — drop below 99°F = 24h to labor
- Day 63Oct 3, 2026Expected whelping day
Not medical advice. This tool provides general guidance based on common veterinary formulas. Always consult your veterinarian for medical decisions about your pet.
Examples
- Dog bred June 1Due ~August 3 · X-ray July 16 · nest by July 27
- Cat bred March 15Due ~May 19 · kittening box by May 12
- Mare bred April 1Due ~March 7 next year