Expected due date
When is my dog or cat due?
Pregnancy is short in pets: dogs carry for about 63 days and cats for about 65, counted from the day of mating. Because the exact date of conception can vary by a few days, vets give a due-date window rather than a single day. Enter the mating date and this calculator gives you the expected due date plus the normal range to watch.
This is a general estimate, not veterinary advice. Confirm the pregnancy and due date with your vet, and call them if labour starts well before the range or your pet seems unwell.
Frequently Asked Questions
How long are dogs pregnant?
About 63 days from mating, though a normal range is roughly 58–68 days because ovulation timing varies. Your vet can narrow it down with progesterone timing or an ultrasound.
How long are cats pregnant?
About 63–67 days, averaging 65 from mating. Signs that labour is near include nesting, restlessness and a drop in body temperature.
How can I tell my pet is close to giving birth?
In the last day or two many dogs and cats nest, go off their food, and their body temperature drops below normal. Contact your vet if labour hasn’t started within the expected window.
What should I prepare before the due date?
Set up a clean, quiet whelping or nesting box a week or two ahead, keep your vet’s number handy, and have clean towels ready. Ask your vet what’s normal and when to call for help.