Pregnancy has a way of making everything feel a little more magical, and Halloween is no exception. I’ve always thought a growing bump is the perfect accessory for creative costumes, and honestly, it makes the whole look even cuter.
I love how Halloween outfits can be anything from hilarious to glamorous, and the best part is finding something that feels both comfortable and fun to wear. For me, putting on a costume while pregnant wasn’t about hiding anything, it was about celebrating it.
Some of my favorite ideas are the ones that make people smile the second they see you. Others are just too chic to resist, and they prove you can be stylish and festive at the same time.
That’s why I’ve pulled together a collection of my favorite costume ideas for moms-to-be, each one perfect for making Halloween extra special this year.
Rosie the Riveter Inspired Costume
This outfit channels the classic Rosie the Riveter look in the most charming way. The denim jacket and jeans paired with a black top create a simple but strong base that works perfectly for a maternity-friendly fit. The bright red bandana tied around her hair instantly makes the look recognizable, and bold red lipstick adds that striking touch of confidence. With gold hoop earrings and a necklace to finish it off, the style balances casual workwear with a hint of feminine flair.
I think this is such a fun and empowering choice because it celebrates strength and resilience while still being flattering and stylish. I love how the denim layers make it comfortable yet put-together, and the bandana gives the whole vibe a playful pop. It’s a costume that feels confident, iconic, and totally pregnancy-friendly, which makes it one of my favorites.
Classic Witch Costume with a Glam Twist
This outfit captures the timeless witch look while giving it a polished and dramatic feel. The all-black ensemble features a long flowing cape layered over a fitted maternity dress that highlights the baby bump beautifully. A tall pointed hat and a rustic broomstick make the costume instantly recognizable, while her loose wavy blonde hair softens the bold silhouette. The moody forest setting with a haze of smoke adds to the magical atmosphere, making the whole look feel straight out of a storybook.
I love how this version of a witch costume feels powerful yet elegant at the same time. The black layers drape so effortlessly, and the pointed hat is such a fun finishing touch. To me, this is the perfect mix of spooky and chic, and it shows that you can keep things traditional while still making the look feel fresh and stylish for pregnancy.
Sunflower Inspired Costume
This outfit radiates warmth and charm with its nature-inspired details. The flowing green dress hugs the baby bump in a flattering way, creating an elegant yet comfortable silhouette. A crown of large yellow sunflowers frames her face beautifully, while her hair falls in soft braids that add a touch of rustic sweetness. Surrounded by pumpkins, hay bales, and more sunflowers, the entire look feels like a cozy harvest celebration.
I think this costume is absolutely stunning because it celebrates pregnancy with such a joyful, earthy vibe. The sunflower crown instantly makes the outfit stand out, and the green dress feels both festive and flattering. To me, it’s the perfect choice if you want something bright and cheerful that still feels unique for Halloween.
Angel Costume with Heavenly Glow
This outfit turns a classic angel look into something truly stunning for maternity style. The flowing white gown drapes beautifully over the baby bump, creating an elegant silhouette that feels soft and graceful. Large feathered wings add a dramatic touch, while the delicate halo brings just the right amount of sparkle. Surrounded by glowing candles and cobweb-covered stairs, the setting makes the whole look feel magical and otherworldly.
I adore this costume because it highlights pregnancy in such a radiant and ethereal way. The dress is flattering without being fussy, and the wings make the entire outfit unforgettable. To me, it’s the perfect choice if you want something timeless and heavenly that still feels completely glamorous for Halloween.
Unicorn Costume with Rainbow Magic
This outfit brings pure fantasy to life with a playful unicorn theme. The shimmering white bandeau top paired with a fluffy pastel rainbow tutu creates a whimsical look that perfectly showcases the baby bump. A sparkly unicorn horn headband with ears and flowers completes the magical vibe, while the candy-filled backdrop of giant lollipops and balloons adds even more sweetness to the scene.
I think this costume is just adorable because it feels fun, colorful, and lighthearted. The rainbow skirt is such a cute way to highlight pregnancy, and the unicorn headband makes it instantly Instagram-worthy. To me, this is one of those costumes that feels joyful and memorable, the kind you’ll want photos of forever.
Cozy Baker Costume
This outfit feels warm and inviting with its charming kitchen theme. A striped shirt paired with a simple white apron creates the perfect look for a baker in the middle of Halloween preparations. The glowing jack-o’-lanterns, homemade cookies on the counter, and pumpkins scattered around set the mood for a festive autumn evening. The maternity-friendly apron ties everything together, making the outfit both practical and adorable.
I love this idea because it’s creative without being over the top, and it fits so naturally into the season. The whole scene feels homey and comforting, while the apron highlights the bump in the sweetest way. To me, it’s one of those costumes that makes Halloween feel cozy and personal, especially if you enjoy baking or want a fun at-home photo moment.
Woodland Elf Costume
This outfit turns pregnancy into something magical with a woodland elf theme. The deep green velvet gown flows beautifully while cinching just above the bump, creating an enchanting silhouette. A leafy crown sits delicately on her head, and a quiver of arrows on her back adds a touch of fantasy adventure. The natural forest backdrop completes the look, making it feel like she stepped right out of a fairy tale.
I adore this costume because it feels so earthy and powerful at the same time. The velvet dress is elegant yet comfortable, and the forest setting makes the whole vibe unforgettable. To me, this is the kind of outfit that lets you feel both fierce and graceful, which is such a dreamy combination for Halloween.
Celestial Goddess Costume
This outfit sparkles with cosmic beauty, turning the night sky into wearable art. The deep navy gown is sprinkled with shimmering silver stars and cinches gracefully above the baby bump, making it both flattering and magical. A radiant silver crown adds drama, while the glowing lanterns and city skyline in the background make the whole look feel like a glamorous rooftop celebration under the stars.
I think this costume is absolutely breathtaking because it feels so regal and dreamy. The starry details make the dress look enchanting, and the crown takes it to the next level. To me, this is one of those Halloween looks that feels elegant and empowering while still keeping the pregnancy bump as the most beautiful part of the outfit.
Cleopatra Inspired Costume
This outfit channels the elegance and power of Cleopatra with a stunning maternity twist. The flowing white gown drapes beautifully around the baby bump, while golden accents and detailed jewelry add richness and drama. A bold golden headpiece completes the look, paired with sandals and arm cuffs that bring the whole regal style together. The backdrop of stone columns and torches makes the costume feel even more dramatic and queen-like.
I love this look because it feels so commanding yet graceful at the same time. The gold details make the outfit shine, and the way the dress highlights the bump feels both empowering and glamorous. To me, this is the kind of costume that lets you step into Halloween as an absolute queen, and honestly, that’s the energy every mama-to-be deserves.
Pumpkin Belly Costume
This outfit is playful and festive with a big dose of Halloween charm. A cozy fall dress makes the perfect base, while the baby bump is transformed into a bright orange jack-o’-lantern with a smiling face. The look is completed with a basket full of candy, making it both practical for trick-or-treating and adorable for photo ops. The house decorated with pumpkins and balloons in the background ties everything together for the ultimate seasonal vibe.
I think this is such a fun and easy idea that still makes a big statement. The pumpkin belly steals the show, and it’s one of those costumes that instantly brings out smiles. To me, it’s the perfect mix of cute and comfy, which makes it such a great option for moms-to-be who want to celebrate Halloween without overcomplicating things.
Vampire Queen Costume
This outfit is all about bold elegance with a dark and dramatic edge. The deep red satin gown flows beautifully over the baby bump, creating a regal silhouette that feels both glamorous and powerful. A long black cape with lace details adds a touch of mystery, while her striking red lipstick and confident stance complete the vampire-inspired look. The grand castle backdrop makes the entire costume feel even more enchanting.
I adore this style because it feels fierce yet feminine, which is such a winning combination. The red gown makes such a statement, and the cape ties the whole look together with that perfect Halloween drama. To me, this is the kind of costume that makes you feel unstoppable, and I love how it turns maternity wear into something so powerful and chic.
Bumblebee Costume
This outfit is buzzing with cuteness and creativity. The yellow-and-black striped dress makes the baby bump the star of the show, with dotted details that turn it into an adorable bee belly. She wears sparkly wings and a fun antenna headband that add just the right amount of whimsy. Surrounded by sunflowers, pumpkins, and string lights, the look feels festive and picture-perfect for Halloween.
I think this costume is such a sweet way to embrace the season while keeping it lighthearted and fun. The bee theme is playful without being over the top, and the way the bump is highlighted makes it even cuter. To me, this is one of those outfits that gets everyone smiling the moment they see it, which is exactly what a good Halloween look should do.
Ghost Bride Costume
This outfit takes haunting beauty to the next level with its ghostly bridal theme. A flowing white gown drapes softly over the baby bump, paired with a dramatic lace veil that trails to the floor. The candlelit church aisle and eerie mist create an atmosphere that is both romantic and chilling, making the costume feel straight out of a gothic fairy tale. Her dark lipstick and piercing gaze add the perfect spooky contrast to the delicate lace.
I think this look is absolutely stunning because it blends elegance with just the right amount of Halloween edge. The bridal silhouette feels timeless, and the lace veil gives it that dramatic flair I can’t get enough of. To me, it’s one of those costumes that makes pregnancy feel powerful and mysterious, which is exactly what makes it so memorable.
Wonder Woman Costume
This outfit transforms a classic superhero look into a maternity-friendly showstopper. The red and gold bustier highlights her bump while still keeping that iconic Wonder Woman style. A star-spangled skirt flows comfortably, and metallic cuffs along with the golden tiara pull the entire look together. The night city lights in the background make the costume feel modern and powerful, almost as if she just stepped out of a comic book.
I think this costume is amazing because it celebrates strength in such a fun way. The details are bold and instantly recognizable, and the fit makes the baby bump look like the centerpiece of the outfit. To me, this is the perfect choice for any mama-to-be who wants to feel fierce, glamorous, and unstoppable on Halloween night.
Pirate Queen Costume
This outfit brings fierce adventure vibes with a glamorous pirate twist. The deep red corset-style dress highlights the baby bump while black puffed sleeves and a flowing skirt add drama. Thigh-high boots and a tricorn hat complete the bold look, with a sword at her side making the costume feel powerful and authentic. Standing on a wooden pier with the sea behind her, the whole scene feels straight out of a swashbuckling story.
I love this look because it blends drama and confidence in such a fun way. The corset and boots give it that edgy flair, while the flowing skirt keeps it flattering and comfortable. To me, this is the perfect choice if you want to feel daring, stylish, and just a little bit rebellious on Halloween.
Flapper Girl Costume
This outfit sparkles with vintage charm straight out of the roaring twenties. The silver fringe dress moves beautifully with every step, while layered pearl necklaces add that perfect touch of glam. A glittering headband with a feather detail frames her hairstyle, making the whole look instantly recognizable as classic flapper style. The glamorous setting with warm lights in the background ties the outfit together with a sophisticated vibe.
I adore this costume because it’s such a fun way to mix old Hollywood glamour with maternity style. The fringe is playful and flattering over the bump, and the pearls and feather make it feel extra special. To me, this is one of those outfits that makes you feel like the star of the party, which is exactly the kind of energy Halloween deserves.
Fortune Teller Costume
This outfit brings a mystical vibe with rich colors and magical details. The deep purple dress flows beautifully around the baby bump, while a patterned shawl adds texture and layers to the look. Statement earrings and layered jewelry sparkle in the lantern light, and the crystal ball she’s holding makes the costume instantly recognizable as a fortune teller. The glowing background of warm lanterns adds to the enchanting mood.
I love this costume because it feels both mysterious and stylish, making it such a standout choice for Halloween. The flowing dress is comfortable yet dramatic, and the accessories add so much personality. To me, this is one of those looks that makes you feel like the star of your own magical story, which makes it extra special for pregnancy.
Pumpkin Spice Latte Costume
This outfit takes cozy fall vibes and turns them into the cutest Halloween costume. The bright orange dress highlights the baby bump beautifully, while a straw hat adds a playful touch. Holding a Starbucks cup makes the pumpkin spice latte theme instantly clear, and the setting inside a coffee shop adds the perfect seasonal backdrop. A small crossbody bag completes the look, keeping it casual yet fun.
I think this idea is adorable because it’s simple, clever, and so on point for autumn. The orange dress alone feels festive, but pairing it with the coffee cup makes it instantly recognizable. To me, it’s the perfect mix of comfort and creativity, and it’s the kind of costume that gets compliments everywhere you go.
Marilyn Monroe Inspired Costume
This outfit recreates the legendary Marilyn Monroe look with a maternity twist. The flowing white halter dress catches the breeze perfectly, highlighting the baby bump in such an iconic way. Paired with red lipstick, classic heels, and her glamorous wavy hairstyle, the whole look feels straight out of old Hollywood. The city street setting adds to the drama, making the costume instantly recognizable and stylish.
I love this idea because it’s playful, glamorous, and timeless all at once. The dress is flattering, the red lips are bold, and the wind-blown effect makes it unforgettable. To me, this is one of those costumes that makes you feel like a movie star for the night, which is exactly what makes it so fun for Halloween.
Ladybug Costume
This outfit turns the baby bump into the cutest part of a playful ladybug look. The red dress with black polka dots makes the theme instantly clear, while black tights and shoes balance out the bold color. A black turtleneck adds warmth and comfort, and the little antenna headband is the perfect fun detail to complete the costume. Surrounded by autumn flowers, the whole scene feels cheerful and seasonal.
I think this costume is adorable because it’s simple yet eye-catching. The ladybug theme works so well with a pregnancy belly, and the headband adds just the right amount of whimsy. To me, this is the kind of outfit that’s easy to wear but still gets lots of compliments, which makes it a great go-to Halloween option.
Jellyfish Costume
This outfit is pure under-the-sea magic with its glowing jellyfish theme. The shimmery, iridescent gown drapes gracefully over the baby bump, giving off a soft ocean-inspired glow. A clear umbrella decorated with glowing lights and hanging ribbons creates the jellyfish effect, making the whole costume look otherworldly. The deep blue and purple lighting with floating jellyfish in the background takes the look to a whole new level of dreamy.
I think this costume is incredible because it’s so unique and creative. The glowing umbrella makes it stand out instantly, and the flowing gown is both flattering and ethereal. To me, this is the kind of Halloween look that feels like wearable art, and I love how it turns pregnancy into the centerpiece of something magical.
Ringmaster Costume
This outfit brings circus flair to life with a bold and stylish twist. The fitted red jacket with gold embroidery instantly commands attention, while black leggings and a simple top make it comfortable and flattering for a baby bump. Tall black boots and a dramatic top hat complete the look, and standing in front of a big circus tent makes the costume even more fun and theatrical.
I think this costume is amazing because it’s fierce, playful, and a little bit dramatic in the best way. The red jacket is such a statement piece, and the top hat adds that perfect finishing touch. To me, this is one of those outfits that makes you feel confident and fabulous, while still being easy enough to move around in during a busy Halloween night.
Glam Flapper Costume
This outfit sparkles with vintage glamour and a little bit of Halloween drama. The black fringe dress moves beautifully, skimming over the baby bump while adding texture and shine. A black feathered headband and long pearl necklaces bring the roaring twenties vibe to life, and a feathered boa draped over her shoulders completes the look. The smoky orange glow of jack-o’-lanterns in the background makes the whole scene extra festive.
I think this costume is stunning because it mixes elegance with a playful edge. The pearls and fringe give it that glamorous flapper feel, while the bump adds such a unique twist to the classic look. To me, this is the kind of outfit that makes you feel dazzling and confident, which is exactly what Halloween should be about.
Minnie Mouse Costume
This outfit is playful, bright, and instantly recognizable. The red polka dot dress flatters the baby bump while adding that classic Minnie Mouse charm. Black tights and red shoes balance the look, and the iconic mouse ears with a matching bow make the costume complete. The colorful backdrop makes everything pop, giving the whole outfit a cheerful and fun vibe.
I love this costume because it’s simple yet so effective. The polka dots are cute, the bump becomes part of the magic, and the mouse ears make it feel extra whimsical. To me, this is the perfect choice if you want something lighthearted and picture-ready that still feels festive and sweet for Halloween.
Skeleton Baby Costume
This outfit is fun, cheeky, and so perfect for Halloween. The black long-sleeve shirt and leggings feature a skeleton print, with an adorable little baby skeleton right over the bump. It’s simple and comfortable, yet it makes such a clever statement. Paired with casual sneakers, it’s easy to wear whether you’re handing out candy or heading to a party.
I adore this costume because it’s equal parts cute and hilarious. The tiny baby skeleton detail is such a clever way to show off your bump, and it always gets smiles from everyone. To me, this is the kind of look that makes Halloween feel lighthearted and fun without any fuss, while still being super memorable.