Cat pregnancy calculator
When is your cat due? Enter the mating date for the estimated due date, the day-by-day window, and a week-by-week timeline of what to expect and prepare — free, no sign-up.
Common questions
How long is a cat pregnant?
A cat is pregnant for about 65 days on average, normally between 63 and 67. Counting from the mating day is an estimate — the exact conception day can vary.
When can the pregnancy be confirmed?
An ultrasound can confirm it from around day 21–25, and an X-ray can count the babies from about day 45, once their skeletons show. Your vet is the reliable source.
When should I call the vet?
Book a check early to confirm and plan. Call sooner if there's a discharge, distress or loss of appetite — and if the due window passes with no birth, or labour stalls, treat it as urgent.
Is this a substitute for the vet?
No — it's a planning aid, not a diagnosis. Pregnancy and birth should always be followed by a vet.