Halloween is the perfect time for pregnant women to lean into the fun of a pregnant belly. Whether you’re looking for a last minute option for a Halloween party, a clever easy costume, or something that takes a little extra work, there’s a creative idea here for everyone.
From a simple white shirt with a cute graphic to an elaborate, glittering ensemble, this holiday is the perfect excuse for expectant moms to create an iconic look. And of course, your bump is the ultimate best accessory for a playful costume party.
This list is full of inspiration for pregnant ladies who want a festive dress-up opportunity that celebrates that adorable belly, or in some cases, turns it into a big round belly prop for laughs. These ideas mix store-bought and handmade maternity halloween costumes so you can find the pregnancy costumes that fit your style.
Starwars BB8 and Leia
Throw on a white shirt maternity top and use iron-on vinyl or body paint to create BB8’s iconic orange and gray design over your belly. Or use a plush BB8 toy to stitch onto the front of your shirt! Pair it with a white dress and Leia buns for the ultimate galactic duo.
Construction Bump
Let the world know to “Yield to the Bump” with this bright, funny tee. Designed to look like a road sign, it’s perfect for expecting mamas who love a pun or want to keep things light and easy.
Rainbow and Pot of Gold
Wear a cute dress and attach a pot of gold to the belly. Bonus points for a matching rainbow sash going over your shoulder to look like there’s gold at the end of your rainbow! This is also a cute couples idea if your partner wants to join you dressed as a leprechaun.
Jack O’lantern
A Halloween classic! Wear an orange shirt or dress with a jack-o’-lantern face on your belly. Add a green hat or headband for a “stem” and you’re a pumpkin queen.
Koolaid
Paint or iron-on the Kool-Aid Man face onto a red maternity tee. Add a speech bubble that says “Oh Yeah!” and you’re instantly the life of the party. Use faux-brick wallpaper on some nice light cardboard to create a hilarious brick wall facade for your koolaid belly to bust through.
Pokeball
For all the Pokémon fans, this red, white, and black tee turns your belly into a Pokéball! Add a hat or Pikachu ears and you’re ready to catch some candy.
Magic 8 Ball
This creator used a large balloon and paper mache to make herself a giant magic 8 ball to wear instead of using just a black tee with the Magic 8 Ball circle on her belly. The extra effort really paid off with this adorable and quirky design. Perfect for trick-or-treating or answering life’s deepest questions on Halloween night.
Forkie
This Toy Story–inspired maternity tee features Forky’s face on a plain white tee. The quirky character paired with your baby bump makes it a fun and unexpected way to show off your growing belly.
Bun in the Oven
Turn a cardboard box into a wearable “oven” and cut a window to show your baby bump inside. Add dials and an oven timer for detail. Or grab a pre-made costume if you want to skip the crafting.
Octopus
This unique Etsy costume adds soft tentacles around your waist, with your bump in the middle as the octopus body. It’s quirky, original, and surprisingly comfy to wear!
Pool 8 Ball
This black tee features a white circle and “8” over the bump. Easy to wear and great if you want something subtle but funny.
BB8
If you want a pre-made option, this comfy BB8 shirt keeps things simple with the droid’s body design stretched across your baby bump. Sci-fi meets maternity wear!
Preggo & Chef
A clever couples costume! One person wears a maternity shirt labeled “Preggo” (like the pasta sauce), while the other dresses up as a chef. It’s easy, funny, and great for photos.
Spiderbaby
A funny twist on the superhero theme, this maternity shirt shows a little superhero baby on the way. It’s a cute nod to your “amazing little sidekick.”
Winnie The Pooh
This cozy maternity costume usually comes as a soft, oversized yellow-and-red dress. Add bear ears and you’re instantly the sweetest bear in the Hundred Acre Wood.
Skeleton
A Halloween staple — this black maternity shirt shows a spooky skeleton body over your belly. This simple idea is comfy and always a hit.
Avocado
This costume highlights your belly as the seed! It usually includes a green tunic or foam cutout with a circular hole over the bump and is perfect for a pun-loving mom-to-be.
Green Monster
Inspired by Monsters, Inc. or just a cute little monster in general, this costume is bright, playful, and great with face paint or silly eyeball headbands to complete the look.
Disco Ball Belly
Cover your belly in silver sequin fabric or mirrored squares to make it shimmer like a disco ball. Pair with a sparkly outfit and big retro sunglasses to dance your way through Halloween.
More Fun DIY Maternity Halloween Costume Ideas
Gumball Machine
Wear a tight white or red maternity top and glue on colorful pom-poms all over the belly area to look like gumballs. Add a printed “25¢” sign on your chest or belly, and you’re good to go!
Fish Bowl
Use a light blue shirt to represent water and add felt fish, seaweed, and bubbles over your bump. You can even hot glue some small plastic fish or aquarium decorations if you want a 3D effect!
Solar System
Turn your belly into the sun with a yellow shirt, then pin felt planets orbiting around it. Use headbands or foam core to create planet rings or moon orbits for extra detail.
Baking Timer
Dress in a plain maternity top and attach a paper or felt kitchen timer right over your belly with the dial pointing to “almost done.” A funny, punny nod to your due date!
Snow Globe
Wear a clear plastic dome or create a sheer bubble using tulle over your bump and fill it with tiny snowflakes or winter village scenery. A sparkly winter maternity look that turns heads!
X-ray Baby
Use iron-on vinyl or fabric paint to create an X-ray design on a black maternity shirt, showing a skeleton of the baby inside. Add seasonal props like a tiny pumpkin, candy, or bat for Halloween flair.
Violet Beauregarde
From Willy Wonka & the Chocolate Factory, Violet is the perfect excuse to turn your belly into a giant blueberry. Wear a blue tracksuit or dress, stuff the sides slightly to exaggerate the round shape, and add a purple-blue tint of face makeup for the “just chewed the gum” look.
Mother Earth
Wear a green or blue maternity dress and decorate your belly with cutouts of painted continents. Add floral headpieces, leafy shawls, or small fake animals for a cute DIY costume that turns you into a nature goddess.
Conclusion
These maternity halloween costumes show that your bump can be more than just cute — it can be the star of the show. From playful puns to full-on masterpieces, these pregnancy costumes make your halloween bump the center of attention. Whether you’re headed to a costume party or just want something comfy for trick-or-treating, your bump truly is the best accessory you’ll have this season.
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