Free cat pregnancy calculator: breeding-day planner with common gestation anchors (about 63–65 days), symmetric due window, days elapsed, trimester-style thirds, animated progress bar and week ladder—for education only, not veterinary advice.
Important: This page is an educational date planner for typical queen (female cat) pregnancy timelines—not veterinary diagnosis or ultrasound scheduling. Queens vary; breeding dates can be imprecise; only a licensed veterinarian can examine your cat.
🐱Summary: Enter your best estimate of first mating / breeding day, pick a gestation length (many references cluster around 63–65 days), and an as-of date. You will get a due window, day counts, trimester labels, and 💕 animated week bars—still just math on a calendar, not a clinic visit.
🐱Cat pregnancy calculator (calendar planner)
Cats are induced ovulators; conception timing can lag mating. Treat outputs as a gentle planning band—then confirm with your veterinarian.
