Being pregnant doesn’t mean you have to sit out on the Halloween fun — in fact, it’s the perfect excuse to get creative.
Your baby bump is basically a built-in costume prop, and turning it into a crystal ball, a disco ball, or even a beer belly is way more fun than trying to hide it.
These maternity Halloween costume ideas prove you can be comfy, clever, and totally show-stopping all at once.
Whether you want something sweet, silly, or downright hilarious, there’s a look here that will make you (and your bump) the star of any costume party.
Funny Pregnant Halloween Costume Ideas

Disco Ball Maternity Costume

Okay, this one is pure fun. The bump is covered in little mirror tiles, so it looks exactly like a disco ball, and holding a real disco ball next to it makes the comparison even better.
The rest of the outfit is super simple. She’s in a white bralette and white pants, he’s in a white tank and shorts, and they both have sunglasses on for that groovy, too-cool vibe. The all-white look makes the shiny bump pop even more.
It’s also really comfy, since there’s nothing tight or heavy to deal with. If you don’t want anything stuck directly to your skin, glue the mirror tiles (or silver sequins) onto a stretchy belly band or a fitted tank instead. You’ll get the same sparkle without the sticky cleanup.
If I wore this, I’d probably bust out my best Saturday Night Fever moves every time a song came on. Pregnancy-approved dancing only, of course, which means mostly pointing and swaying.
Astronaut and Moon Maternity Costume

I can’t get over how cute this one is. Mom is dressed as outer space in a dark, starry bodysuit, and her bump is the full moon, craters and all. She even has a little sparkly shimmer on her face to finish the look.
Dad is the astronaut in a white NASA jumpsuit, and he’s planting a tiny American flag right on the moon. That little detail is what makes the whole costume, and it’s guaranteed to get a laugh.
This is also a really comfortable couple’s costume. A stretchy black bodysuit or leggings and a long-sleeve top are easy to wear all night. For the moon, use a printed belly band or a fitted tee with a moon graphic if you’d rather skip the paint.
If I wore this, I’d probably say “one small step for man, one giant leap for my bladder” every time I had to run to the bathroom. Which, let’s be real, would be every 20 minutes.
Pacha and Chicha Maternity Disney Costume

If you’ve seen The Emperor’s New Groove, you know these two are an adorable pair — and this costume idea just makes it even better.
Chicha is pregnant in the movie, so this character is the perfect couple costume ideas!
Pairing it with Pacha’s simple tunic and headpiece instantly makes it a recognizable duo.
What I love most is how comfy this looks. No tight waistbands, no itchy wigs — just colorful, easy-to-wear outfits that make you feel part of the fun without feeling like you’re trapped in a costume all day.
It’s a little niche but this movie is so inconic, I KNOW some people will guess it right away.
Monsters, Inc. Family Maternity Disney Costume

This one’s just too cute. Mom is rocking a bright green tee with Mike Wazowski’s big eye right over her bump, which feels like it was made for a maternity costume.
Dad’s comfy Sulley onesie is perfect for chasing little ones around, and that tiny Boo in her pink dress? She steals the whole show.
What makes this even better is the little “2319” prop — if you know, you know. It’s such a fun, easy costume for the whole family, and it works whether you’re heading to a Halloween party or just taking adorable photos for Instagram.
I’m just saying, if my toddler was dressed as Boo, I’d probably have to bribe her with candy to get her to stop running around yelling “Kitty!” every five minutes.
Winnie the Pooh Maternity Disney Costume

You can’t get much sweeter than this. Mom’s rocking a bright yellow dress with the classic red “Pooh” shirt over the bump, which honestly feels like it was made for maternity wear.
Dad’s dressed as Christopher Robin, and their little Piglet is just pure cuteness with her pink ears and frilly dress. The red balloon is such a simple touch, but it ties the whole look together perfectly.
This is one of those costumes that’s comfy, recognizable, and doesn’t take a ton of effort to pull off.
Plus, it works for any stage of pregnancy — Pooh’s belly is practically the star of the show anyway. If I wore this, I’d probably spend the whole night asking people where the “hunny” pot is… you know, for authenticity.
Harry Potter and Golden Snitch Maternity Costume

Calling all Potterheads, this one is pure magic. Mom’s bump is the Golden Snitch, wrapped in shiny gold with big gold wings sticking out on both sides, and dad is Harry, reaching out to catch it like he’s winning the Quidditch match.
His look is spot-on: round glasses, a gray sweater vest, a striped tie, and that iconic maroon-and-gold Gryffindor scarf. Mom keeps it simple in all black, which makes the gold Snitch really stand out.
The best part is how easy this is to DIY. All you need is a black top and pants, some gold fabric or wrapping material for the bump, and wings cut from gold poster board. It’s comfy, cheap, and every Harry Potter fan will recognize it immediately.
If I wore this, I’d probably dodge out of the way every time my partner reached for my belly. You’ve got to make him work for that 150 points.
Mr. Smee Maternity Disney Costume

This is maternity costume gold. The striped shirt, the red beanie, and the round belly out on display — it’s basically like Mr. Smee from Peter Pan was destined to be a pregnancy look.
The way the bump perfectly matches his cartoon belly is just too funny. Bonus points for the salute, because it makes the side-by-side even better.
It’s such a simple costume to throw together, and you don’t have to worry about squeezing into anything uncomfortable.
If I did this, I’d probably be calling everyone “Cap’n” all night while snacking on candy like it’s my job. And honestly? That’s pretty on-brand for both pregnancy and Mr. Smee.
Rey and BB-8 Maternity Disney Costume

If you’re a Star Wars fan, this is genius. The Rey outfit already looks amazing with the arm wraps, belt, and cream tunic — but then you add BB-8 right on the belly? Absolute perfection.
It’s like the little droid is tagging along for the ride, and honestly, it’s such a fun way to show off your bump.
The best part is that this costume is super comfortable while still looking detailed and put-together. You’re not dealing with heavy props or anything itchy, just soft fabric and an easy tee with BB-8’s design.
If I wore this, I’d probably spend the whole night making droid beeping noises just to annoy my partner — which feels exactly like something Rey would approve of.
Beer Belly Dad Maternity Costume

Okay, this one had me cracking up. The plaid flannel, the trucker hat, the baggy jeans with a big belt buckle, and that ridiculous fake mustache. It’s every guy at every backyard BBQ you’ve ever been to.
The best part is the bump hanging out under the cropped white tank. It’s the most convincing “beer belly” you’ll ever see, and it does all the work for you.
It’s also one of the easiest costumes out there. You probably already have most of this in your partner’s closet, and it’s all loose and comfy, so there’s nothing squeezing you anywhere. Just keep the can empty (or swap it for a root beer), because the props are strictly for show.
If I wore this, I’d probably spend the whole night lounging on the couch with my hand on my belly, yelling at the TV about a game I’m not even watching. And honestly? That’s not much different from my normal third-trimester evenings.
Operation Game Maternity Costume

This might be the most clever maternity costume I’ve ever seen. Mom is dressed as the patient from the classic Operation board game, with all the little ailments printed right on her bodysuit: the Adam’s apple, the wishbone, the broken heart, and even a Charlie horse on her leg.
The best part? Right over the bump, the “ailment” is Baby Henderson. It’s such a sweet way to work the baby into the costume, and you can totally customize it with your own last name.
Dad in light blue scrubs and an “Operation” tee is the perfect partner look, and the stethoscope on the belly makes the photo. It’s comfy, stretchy, and easy to recreate with a nude bodysuit and some printable or iron-on graphics.
If I wore this, I’d probably make a buzzing noise every time someone touched my bump. Fair warning to all the belly-touchers out there
Super Mario Maternity Costume

This one is so simple but so smart. The red Mario cap, the red crop top, denim shorts with black suspenders, and then the real star: a green 1-Up mushroom painted right on the bump.
If you’ve ever played Super Mario, you know the 1-Up mushroom gives you an extra life. Putting it on a baby bump is such a sweet way to say a new little life is on the way, and it’s the kind of detail people will love once they get it.
This look is also super easy and comfy. You probably already own most of it, and the belly paint does all the heavy lifting. If you’re not into face or body paint, an iron-on mushroom on a fitted tee works just as well.
If I wore this, I’d probably make the little “power-up” sound every time I grabbed another snack. Because let’s be honest, that’s exactly what pregnancy snacks feel like.
Fortune Teller Maternity Costume

This one is so gorgeous and so clever. The bump becomes the crystal ball, covered in a galaxy print that looks like it’s swirling with secrets about your future (spoiler: the future is diapers).
The rest of the look is pure mystic glam. There’s a black off-the-shoulder top, a long black maxi skirt, a gold coin hip scarf, a printed head wrap, and a chunky gold necklace. The dark lipstick and smoky eyes really sell the whole fortune teller vibe.
What I love is how comfy this is. A stretchy maxi skirt and a soft top are basically pregnancy wardrobe staples, so you’re not sacrificing comfort for the costume. A galaxy-print belly band or tube top gives you the crystal ball effect without any body paint.
If I wore this, I’d probably spend the whole night rubbing my belly and “predicting” everyone’s future. And I can already tell you one thing for certain: there’s a nap in mine.
Kangaroo and Joey Maternity Costume

This might be the sweetest maternity costume ever. Mom is a cozy kangaroo in a brown fitted dress with a cream belly panel, and the bump becomes the pouch, with a little stuffed joey peeking out. The ears on the headband finish the look perfectly.
It’s such a cute way to show off your bump, because a kangaroo literally carries her baby in front. It just makes sense, and everyone will get it right away.
This is one of the comfiest costumes on the list, too. A stretchy brown dress or tunic, a felt or fleece pouch sewn or safety-pinned on, a headband with ears, and any stuffed animal from your kid’s room. Done.
If I wore this, I’d probably keep my phone, snacks, and lip balm stashed in the pouch next to the joey. Honestly, why have I not been wearing a pouch this whole pregnancy?