Cat Pregnancy Calculator & Due Date
Enter the mating date to estimate when your cat is due, the likely window, and how far along she is today.
Cats carry about 63–67 days from mating. Confirm with your vet — an ultrasound (~day 25) or x-ray (after day 45) gives a count and a firmer date.
Estimate only — not veterinary advice. Every animal is different; for a medication dose, a possible poisoning, or any emergency, call your veterinarian or an animal poison control line right away.
Reading the window
Cat pregnancy is short and fairly consistent, but exact conception timing from a single mating isn't certain, so plan around the whole window rather than one date. Have a warm, quiet nesting box ready a week or two early in a low-traffic part of the house.
As the date approaches
Most cats manage birth (queening) on their own, but know the warning signs that need a vet: straining for more than 20–30 minutes without a kitten, obvious distress, or a green/dark discharge with no kitten following. Keep your vet's number and an emergency line handy just in case.
Frequently asked questions
- How long are cats pregnant?
- About 63 to 67 days from mating, often summarized as roughly nine weeks. The calculator centers on 65 days and shows the likely window around it.
- How can I tell my cat is pregnant?
- Around three weeks her nipples become pink and enlarged (“pinking up”), she may have a bigger appetite, and her belly rounds out over the following weeks. A vet can confirm by palpation or ultrasound.
- What are the signs labor is near?
- In the last day or two she'll often seek a quiet nesting spot, become restless or unusually affectionate, and may stop eating. A drop in body temperature can precede labor.
- How do I care for a pregnant cat?
- Feed a high-quality kitten/growth food in the second half of pregnancy and during nursing, provide a quiet nesting box, and keep up vet checks. Keep her indoors as the date approaches.
Sources
These are the references behind this calculator. Where a source gives a range we take the midpoint and round toward caution, and where we go beyond what a source states — an extra safety margin, or a rule of thumb rather than a clinical threshold — the page says so in the text above.
- Pregnancy and parturition in cats — VCA Animal Hospitals