17 Best Pregnancy Halloween Costumes to Put a Spooky Spin on Your Baby Bump

This beloved storybook character's defining feature is his honey-filled tummy, making it a top Halloween costume among expecting moms. Not to mention, it’s super simple: Just pair a yellow maternity dress or skirt with a red crop top — items you might already have in your closet — and finish it off with some bear ears. Alternatively, you can grab this ready-made Pooh costume from Amazon. It includes everything you need, but we also recommend adding his signature “hunny pot” in the form of a drawstring bag for good measure. 

Bonus: If you have a partner and kids, you can all dress as different residents of the Hundred Acre Wood.

Nothing says Halloween like a pumpkin. And with this comfy T-shirt, your bump will look like the perfect little jack-o’-lantern. Wear it with jeans for an understated look, or dress it up for trick-or-treating with a pair of black leggings and a green stem hat. FYI: It does run a little long, which some moms didn’t love. And order a size up if you’d like a slightly looser fit.

The Barbenheimer excitement of 2023 is still alive, so take advantage by dressing as Midge for Halloween. This maternity costume plays up the character (based on a real doll) with a flowy floral dress and red wig. But the best part? The dress is cute enough to wear on its own. 

There are plenty of A-list pregnancy announcements to inspire your own Halloween costume. In the past, What to Expect moms have channeled Beyonce and Kourtney, the eldest Kardashian sister, but this is the year of Hailey Bieber. All you need to recreate her iconic pregnancy announcement is a maxi-length lace maternity dress, which you can easily repurpose for your own maternity photoshoot. Just add a pair of cat-eye sunglasses, and you’re good to go!

This oversized cow onesie is the comfy costume you’ll want to wear on Halloween. Its baggy fit, particularly around the midsection, will offer plenty of room for your bump. Moms-to-be will also appreciate the button closure, which makes it easy to go to the bathroom! In fact, one mom-to-be said it was easy to squeeze in and out of at 35 weeks pregnant.

Witches are practically synonymous with Halloween, and you can still get in on the tradition with a baby bump. Pair a black maternity dress with these witchy accessories. You’ll get a pair of striped socks, a pointy hat and matching wig. It’s an easy yet surefire win for the holiday and you can reuse the purple set for many more years to come. 

This construction worker ensemble is a popular go-to for announcing a pregnancy, especially among What to Expect community members. It’s as easy as putting on a reflective safety vest and yellow helmet, and creating a “Bump Ahead” sign. (Not crafty? Don’t worry — Amazon sells plenty of pre-made options too.) If you live in a colder area, you’ll appreciate that you can easily layer the vest over warmer clothing.

Throw it all the way back to the early 2000s by channeling an iconic movie mom. Throw your hair back in a ponytail, put on a striped tee and zippered hoodie before layering a pleated skirt over jeans, and you’re good to go. One What to Expect mom added a soda cup for good measure and had her partner dress up as Bleeker. (This matching track outfit will help you recreate the movie poster).  

Other clever couple’s costumes inspired by movies that we came across on our forums include Tom Hanks and the Wilson volleyball from Castaway, Captain Hook and Mr. Smee from Peter Pan, and pregnant Padme and Anakin from Star Wars. 

No one has to know this skeleton one-piece is technically pajamas. The fitted look zippers down to your abdomen, so it shouldn’t cause a problem when you need to run to the restroom. Made of a higher-quality blend of cotton and spandex, the pajamas are stretchy and soft, so it’ll be far comfier than most costumes. Plus, the red heart detail takes it out of creepy territory into cute. 

This is also another great costume to announce your pregnancy. One What to Expect community member said she dressed as a skeleton to share the news, but her onesie had a baby skeleton screen-printed on the belly. If you’re open to spending a little bit extra, there’s a similar design from Tipsy Elves that includes the baby-to-be.

If someone asks when you’re due, direct them to your baby-turned-Magic 8 Ball. This stretchy shirt is perfect on its own, though one What to Expect mom gave it a DIY spin by adding triangle “fortunes,” including one that reads, “It’s a girl!”

This snowman costume is sure to melt hearts — and can be worn well into the winter.  The T-shirt features two button eyes, a carrot nose and a coal smile. Just be sure to grab it in a larger size so your bump has plenty of room, as many moms-to-be say it runs on the smaller side. 

Transform your bump into a disco ball. All you have to do is wear black clothes and then wrap up your midsection with this retro-inspired fabric. The best part? You can hold off until cutting it down to the exact size you need for the perfect fit come Halloween night.  

Although the costume is perfect as is, you can up the glitz factor with disco ball earrings or equally sparkly baubles. If you’re feeling up to it, a pair of sparkly heels will provide the perfect finishing touch. You can easily involve the whole family, too, by inviting others to dance around your orbit in metallic flared leggings and jumpsuits.  

Millennial moms, dress up as the generation’s symbol and let your bump shine as the pit of the tasty green fruit. One What to Expect mom DIY-d the idea by painting a cardboard cutout green and wearing a brown shirt so that her tummy poked through the hole (Yhen, naturally, she dressed up her little girl the following year in an avocado onesie!). 

If you’re less crafty, you can opt for this long-sleeve avocado maternity shirt. It’s earned high praise for its super-soft comfort and a true-to-size fit that easily layers over black leggings or maternity jeans. Plus, it won’t cost you more than $20. 

Protect your growing pumpkin by dressing as a scarecrow this Halloween. Justs grab a large flannel, slide on a pair of maternity denim overalls, and pair it with this scarecrow accessory kit from Amazon. This set includes four straw cuffs for your hands and feet, a rope belt and a classic hat. Everything is adjustable and attaches via velcro, keeping with the simplicity of the costume. You can lean into the scary with some menacing makeup or stick to the sweet vibes with extra blush. 

This cheeky couple’s costume plays up the classic pregnancy pun by transforming mom-to-be into the literal appliance and their partner into the pâtissier. It’s been a longtime favorite way to announce a pregnancy, and while your actual bun is symbolically inside, this costume adds on a surprise prop in the form of a loaf that still needs time to bake.  

Another play on a pregnancy pun, this “Preggo” apron can be tied on and worn over anything of your choosing. Plus, it’s A one-size-fits-all, so it’s guaranteed to fit no matter the size of your bump. Multiple What to Expect moms have involved their partners by dressing them up as a chef to show that something’s certainly cooking in the kitchen.  

This maternity tee transforms your bump into an oversized Pro V1. The cotton fabric will be super comfortable against sensitive pregnancy skin, and it’s easy enough to pair with maternity leggings or jeans for a comfy costume. It likely won’t take much convincing to get your partner to put on their finest polo and golf pants.