Can My Cat Sense My Pregnancy?

Cats may sense pregnancy even before you do because they notice some bodily changes. Here's how you can tell. Plus, how to prepare your cat for a new baby.

Medically reviewed by Alyssa Dweck, MS, MD, FACOG

Cats can usually tell if you're pregnant even in the early stages. Due to their strong sense of smell and hearing, they typically notice bodily changes related to pregnancy before their owners.

Before becoming parents to a tiny human, many people start with a pet. Bringing home a new two-legged little love doesn’t make the existing four-legged one any less special or important.

But while many soon-to-be parents start thinking about how their new baby will bond with their pet a few weeks before bringing the baby home, pets may be thinking about it much sooner. In fact, cats may be able to sense when you’re pregnant—possibly even before you do.

“Cats do seem to sense when their humans are pregnant, even in early stages,” says Chyrle Bonk, DVM, a veterinarian in Orofino, Idaho. Discover how exactly your feline does this, how you can tell, and how to make sure introductions go smoothly when you finally bring your baby home.

Can Cats Sense Pregnancy?

Cats can sense pregnancy very early on because of their strong sense of smell.

“Cats have a super-refined sense of smell. With up to 200 million scent receptor cells, it is far better than our human sense of smell,” explains Paola Cuevas, MVZ, a veterinarian and animal behaviorist. This comes in handy for sensing the earliest hormonal changes that occur during pregnancy.

“Estrogen, progesterone, and human chorionic gonadotropin (hCG) all increase when people first become pregnant,” says Kim Langdon, MD, a retired OB-GYN.

These are drastic changes, with levels of hCG, in particular, doubling every two to three days for the first ten weeks of pregnancy. Since changes in hormone levels cause changes in body odor, your cat can detect these changes even before you take a home pregnancy test.

In addition to hormonal changes, your body temperature also increases very slightly during the early stages of pregnancy. Dr. Bonk says that even though the change is too small to be noticeable to humans, your cat may notice and be drawn to it.

That said, it is just something different that your cat is noticing, at least during your first pregnancy. “Cats don't specifically know that someone is pregnant. What they know is that there has been a change in the person’s smell,” explains Dr. Cuevas.

“Since cats have the ability to learn if the same person is pregnant more than once, chances are that cats can put two and two together and associate that a baby is born after that particular change of smell.”

Can Cats Hear My Baby's Heartbeat?

A cat’s hearing is up to three times as strong as a human’s, says Dr. Bonk. So while we need to use tools like a stethoscope, fetal Doppler, or fetal heart monitor to listen to a fetus’ heartbeat, cats may be able to hear it on their own.

“A cat’s external ears rotate up to 180 degrees to locate the origin and identify even the faintest of squeaks, or other of their prey’s noises,” Dr. Cuevas says.

“Their ears can work as satellites that can move to locate the direction of noises while at the same time magnifying their perception. So it is definitely possible that a cat can detect an unborn baby’s heartbeat.”

Just as with changes in the smell and temperature of a pregnant person, the cat may not equate the sound they are hearing with the presence of a baby. But they will recognize that there is something new going on that they want to be aware of.

Do Cats Act Differently Around Pregnant People?

In short, it depends on the cat and how they typically react to changes in their environment. “How they act will depend on their individual personality,” Dr. Bonk explains.

“Some become overly affectionate and more drawn to the pregnant person. Others become more curious and alert around the person. Some may even become anxious or upset because they sense a change in their routine coming on.”

If you don’t want your cat to act differently around you or you are worried about them expressing their anxiety on the legs of the unsuspecting new crib, try to stick to your existing routines as much as possible.

“Cats are more likely to have a change of behavior when changes take place in the people who feed them or cuddle them,” Dr. Cuevas explains. Continuing to do those things just as you always have will show your feline friend that the changes they are noticing with you are not going to alter their routines.

Related: Pregnant Redditors Share Their Wildest Pregnancy Dreams—and There Are So Many Cats

How to Introduce Your Cat Once Baby Arrives

It is important to take steps during your pregnancy to prepare your cat for your baby’s arrival. Surprising them with such a huge change to their environment and daily routines will only distress them, which may lead to negative behaviors.

Show your cat baby items in advance

“The best way to prepare your cat for a new baby is to plan well in advance. Have all of the new furniture, clothes, etc. out so that your cat can look it over and get used to its new placement,” Dr. Bonk suggests.

“Slowly start to change their schedule, if needed, well before the baby comes so that they won’t associate these changes with the arrival of a new human.”

Bring a blanket with your baby's smell home first

Once your baby is born, have someone bring home a blanket or an item of clothing your baby has worn for the cat to smell before the baby comes home from the hospital, says Dr. Langdon. This way, your little one won’t seem like a total stranger to your cat when you finally walk through the door.

Give your cat extra attention

Finally, during those first few weeks and months home with your newborn, don’t forget about your four-legged friend.

“Carve out one-on-one time for your cat every day so that they don’t feel neglected or forgotten,” advises Dr. Bonk. “And always supervise your cat’s interactions with baby and reward them when they handle it calmly.”

If you have questions about your cat, contact your vet or an animal behaviorist. If you have concerns about your pregnancy, contact a health care provider.

Related: How to Introduce Your Dog to Your New Baby

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