Enter your cat's mating date to get an estimated due date, find out exactly how long your cat is pregnant, and track weekly pregnancy milestones.
We'll calculate your cat's due date and milestones
Using our cat pregnancy calculator is the simplest way to prepare for your feline friend's upcoming litter. Whether you're a first-time cat parent or an experienced breeder, knowing the estimated timeline is crucial for ensuring a safe and healthy delivery.
To use the calculator, simply enter the date of mating (or the first day you observed mating behavior). The tool automatically applies the veterinary standard 65-day gestation period, adjusting slightly based on breed and whether it's her first litter. It will then generate a detailed cat due date calculator timeline, giving you a precise delivery window and a week-by-week guide to her physical changes.
A common question among pet owners is: how long is a cat pregnant? On average, feline gestation lasts between 63 and 67 days, which is roughly nine weeks (or a little over two months). While 65 days is the standard average, a normal pregnancy can safely range anywhere from 58 to 72 days.
Breed variations can also play a minor role. For instance, Siamese cats often have slightly shorter pregnancies (around 62–66 days), while larger breeds like Maine Coons or Persians might carry their kittens slightly longer. Additionally, if this is your cat's first litter, she may go a day or two past the average 65-day mark.
If you don't know the exact mating date and aren't sure if you need a cat due date calculator yet, look out for these telltale signs of feline pregnancy:
Understanding the stages of pregnancy can help you provide the best care. Here is a breakdown of what happens during those 9 weeks:
As the date provided by your cat pregnancy calculator approaches, it's time to prepare for labor, medically known as "queening." Set up a comfortable, quiet nesting box lined with clean towels in a low-traffic area of your home. Show it to her, but don't force her to use it—she will ultimately choose where she feels safest.
When labor begins, you'll notice signs like restlessness, excessive grooming, vocalization, and a drop in body temperature. Most cats deliver their kittens entirely on their own and prefer not to be disturbed. Keep your distance, but monitor her closely. Have your veterinarian's emergency contact information ready just in case she strains for more than two hours without producing a kitten, or if there is excessive bleeding.