If you have a female cat who isn't spayed and is allowed near male cats, then chances are good that she's going to get pregnant at some point. Cats get pregnant very easily, so if you don't want little kittens running around, you can do two things: either get her spayed, or keep her away from other cats by not allowing her outside. However, accidents happen, and if she ends up slipping out the door one day, it's totally possible that she could come back as a mommy-to-be. So, if you haven't fixed your cat, you'll definitely want to be aware of the signs that your cat might be pregnant — just in case.
Just like humans, cats go through both physical and mental changes when they're expecting, and the changes are extremely similar. Unlike humans, though, cats are only pregnant for about 60-67 days. Because the typical gestation period is so short (about nine weeks), it's totally possible to miss the signs completely, until one day your cat is nursing a bunch of tiny kittens (which, honestly, isn't the worst surprise you could ever come home to). It's easy to assume that your cat just gained some weight, and if the cat is already on the heavier side, you may not even notice that.
While cats can go through a pregnancy and give birth without the help of a doctor, that doesn't mean she shouldn't get the medical attention she deserves. It's important to notice if your cat is pregnant for your sake and her sake — if you think she is, a doctor can asses her health and make sure everything is okay. Aside from that important step, you'll be able to give yourself more time to prepare for a litter of kittens. You'll need to answer some questions, like if you're prepared to keep and raise them all, or if you want to give them up for adoption. Keep in mind that a lot of shelters are already so overwhelmed with strays and kittens that they may not accept another litter.
That's exactly why it's best to be prepared. Here a few signs your cat is pregnant that you should watch out for: