How to tell if your cat is pregnant?

Signs of Pregnancy in Cats

A pregnant queen (the term used for an unspayed female cat, especially while pregnant) will display both physical and personality changes that will become more evident around three weeks after mating, including swollen nipples, enlarging abdomen, and nesting behaviors.

A pregnant calico cat outdoors outside in the grass.

The gestation period for cats runs 64 to 66 days. You could consider 63 days, or nine weeks, as an average feline gestation period.

Physical Changes in a Pregnant Cat

Looks for these signs in your cat’s body indicating pregnancy. They can also give you an idea of how far along your cat is.

Heat cycles cease:

This may be the first sign you notice of a cat’s pregnancy. If a cat has been going through heat cycles every 10 days to two weeks, and suddenly stops, it is likely she is pregnant.

Nipples swell and become rosier in color:

Breeders call this “pinking-up,” and it may be the first visual sign you will see in a pregnant cat. This usually occurs at around three weeks into the pregnancy. There may be a slight discharge from the nipples, as well.

Change in appetite:

A pregnant cat may have a decrease in appetite early in her pregnancy. In the second half of pregnancy, she will show an increased interest in food. After all, a pregnant cat is not only eating for herself but for several future kittens.

Weight gain:

Most pregnant queens will gain about 2 to 4 pounds of body weight over the course of pregnancy.

Funny Fat Cat Sitting in the Kitchen


Pregnant queens may be subject to a few bouts of “morning sickness,” much as human mothers-to-be. This in itself is not necessarily a reason to worry, but if the vomiting continues or is frequent, contact your veterinarian for help.

Enlarged abdomen:

Sometime around the fifth week of pregnancy, a pregnant cat’s abdomen will start to swell noticeably. It will continue to enlarge until the time for birthing. It can be a little harder to spot an enlarging belly if your cat was overweight to begin with, however.

Nesting behaviors:

Typically, your cat will begin “nesting” a couple of weeks before she gives birth. Cats will commonly find a secluded spot and spend a lot of time there. They may even attempt to drag blankets or other soft items into the nest.

To prevent your cat from choosing an undesirable spot to give birth, such as in a drawer or a difficult-to-access area, provide her with a birthing box that’s easy for her to get in and out of. Line the box with a few soft blankets that can be disposed of or washed as they become soiled.


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