A bump is the best Halloween prop you'll ever have, and you don't have to buy it. The trick is building a costume around it that stays soft and roomy from the first party to the last photo. Below are 30 pregnancy costumes, from food puns and cute animals to recognizable characters and a few polished looks for photos. Most start with a maternity dress or leggings you already own plus some felt and craft supplies, so they adapt to whichever trimester you're in. For each one I've covered the clothing, hair, makeup, props and shoes, with notes on what I'd change if you're tired, warm or walking a long way.
Belly Panels That Grow With You
Almost every costume below relies on a panel over the bump, and that panel is where most homemade maternity costumes go wrong. I build it as a separate piece instead of gluing straight onto the dress, so I can reposition it as the belly changes and keep the dress wearable afterwards.
- Use felt or a stable cotton for the panel. Felt doesn't fray, and it bends with the bump without wrinkling badly.
- Attach it with safety pins from the inside, sew-on snaps or strips of sew-in hook-and-loop tape. Adhesive hook-and-loop tends to peel off stretch fabric.
- Never put tape or glue on your skin. Pregnancy often makes skin more reactive, and the bump stretches all evening.
- Try the costume on a few days before the party, standing and sitting. A bump can grow noticeably in a couple of weeks.
- Fix the panel slightly above where you think it should go. It always looks lower once you're standing in photos.
If you're very near your due date, a belly band or a loose tube of stretch knit pulled over the bump makes a great base. Sew or pin the panel to the band, and it slips on and off in seconds.
1. Pumpkin Bump Maternity Costume
The pumpkin is my go-to for a first maternity costume because it needs one fitted orange dress and a felt face. Cut the jack-o'-lantern features from black felt and attach them with removable fabric tape, so the dress goes back into your everyday rotation on November first. A green cardigan handles a cold night and doubles as the stem colour. Loose curls, a leafy headband and peachy makeup keep it sweet. Green or black leggings both work underneath. Pick cushioned flats or supportive ankle boots over anything with a heel; you'll be on your feet more than you expect.
2. Skeleton X-Ray Maternity Costume
The skeleton X-ray works on a black maternity dress or a long black tee with leggings, and the tiny baby skeleton over the bump is the part everyone notices. I cut the bones from white felt rather than painting them, since paint cracks as the fabric stretches over a growing belly. Fabric glue is permanent; safety pins or removable tape let you reuse the dress. A sleek ponytail and soft grey eyes with a few white eyeliner details keep the face friendly. A black zip hoodie adds warmth without hiding the design, and black-and-white sneakers carry you through a long evening.
3. Avocado Bump Maternity Costume
Here the bump becomes the avocado pit, which makes people laugh every time. Start with dark green: a maternity dress, a stretchy jumpsuit or a fitted top with leggings. Cut a large light green felt avocado shape and centre a round brown fabric panel over the belly. I'd sew the brown circle onto the felt first so you're only attaching one piece to the dress. A high bun and a leaf headband give a clean outline. Green shadow and peach blush suit it. A painted cardboard toast purse is optional, though it does make the joke land faster at a crowded party.
4. Bun In The Oven Maternity Costume
Bun in the oven is the pun everyone expects, so the build has to be comfortable. Cut a lightweight cardboard box with generous openings for your head, arms and bump, then paint it silver or white with knobs and a window. The soft fabric bun should rest in front of your belly, never pressing on it. Wide fabric straps over the shoulders spread the weight far better than cord, and I always make the box easy to lift off, because you'll want to sit down. A black top, stretchy pants, an oven mitt and a wooden spoon finish it. Supportive black sneakers keep you steady.
5. Gumball Machine Maternity Costume
Soft pom-poms over a white top turn your bump into a gumball machine. Attach them with fabric glue or a few hand stitches, and test one first: cheap pom-poms shed fibres and some glues soak through thin jersey. A red skirt or red leggings make the machine's base, and a silver cardboard coin slot sits just below the belly. Carry a small red bucket for candy. A high ponytail with bright clips and a little coloured eyeliner keep the mood playful. If you'll be in a crowded room, check that every pom-pom is lightweight and sewn tight, since people will poke them.
6. Basketball Player Maternity Costume
A round bump makes the basketball itself, so this costume is mostly about the panel. Wear a stretchy orange maternity top under an oversized jersey and draw the curved seam lines on an orange felt belly panel instead of on your skin. Put your due date as the jersey number for a personal touch. Loose athletic shorts over bike shorts or joggers handle the legs, depending on the weather. A wide sweatband over a high ponytail and minimal makeup suit the sporty theme. I'd wear high-top sneakers with supportive insoles here, since a jersey invites you to stay on your feet.
7. Disco Ball Bump Maternity Costume
The disco ball is the bump costume I'd suggest for a dance party, because sequins catch every light in the room. Start with a silver maternity dress or a black stretch jumpsuit, then attach a round panel of silver sequin fabric over the belly. Sequin fabric is far kinder than glued mirror tiles, which have sharp edges and pop off as you move. A metallic cropped jacket and big hoops give the retro shape. Voluminous curls with lavender shadow and a gloss lip finish the face. Swap a bulky prop for a small star bag, and choose silver sneakers or low block heels for stability on a dance floor.
8. Mother Earth Maternity Costume
Mother Earth suits anyone who wants something graceful rather than funny. An empire-waist maternity dress in soft blue, green or ivory gives plenty of room through the middle, and a light green shawl softens the shoulders. Weave faux leaves or small fabric flowers into loose waves or a braided crown. A removable globe panel painted with simple oceans and continents covers the bump; I'd paint it on felt or canvas, not on the dress. Green liner and golden highlighter keep the makeup natural. Carry a basket of silk flowers and battery fairy lights. Keep any vines loose, never wound around your body or trailing near your feet.
9. Kangaroo And Joey Maternity Costume
Kangaroo and joey is the sweetest way to show off a bump. A soft brown jumpsuit, brown leggings with a tunic or a loose fleece dress makes the base. Sew or pin a roomy fabric pouch over your belly and tuck a lightweight stuffed joey inside. I'd sew the pouch onto a separate cream panel, which lets you size it as the bump grows and keeps pins off the dress. Rounded ears, a short soft tail, eyeliner whiskers and warm blush do the rest. A canvas crossbody under the pouch holds your phone. Keep the tail short so it doesn't snag on chairs or other guests.
10. Winnie The Pooh Maternity Costume
Winnie the Pooh is mostly red and yellow, which is why it's so easy to build from your closet. Layer a red cropped top over a mustard maternity dress, or wear a red maternity tee with yellow leggings if separates feel easier. Add a round-ear headband and a simple bun. Golden eye makeup, rosy cheeks and a tiny brown nose dot read as Pooh without full face paint. A lightweight painted honey pot holds candy or your keys. Yellow sneakers or tan slip-ons finish it. For an outdoor night, fleece-lined leggings and a tan cardigan keep you warm without changing the look.
11. Mike Wazowski Maternity Costume
Mike Wazowski's single eye fits perfectly on a bump. Wear a bright green maternity dress or oversized green tee, then build the eye from white, blue and black felt. Centre it while you're standing, not sitting, because the belly shape changes and an eye placed low looks off in photos. Two small soft horns on a green headband finish the head. Green eyeliner and bright blush keep it playful without face paint. A clipboard is the easiest movie prop. White or green sneakers handle walking, and this one is quick enough to make the night before a party.
12. Juno MacGuff Maternity Costume
Juno MacGuff is the costume for anyone who wants to wear normal clothes and still be in character. Start with a striped maternity tee and a burgundy hoodie or zip jacket over it. A knee-length plaid skirt with a stretch waistband, or maternity jeans, finishes the bottom half. Keep hair in a low, slightly messy ponytail and the makeup to mascara and tinted balm. A big orange drink cup or an old corded phone is the giveaway prop. Striped knee socks add character, and worn-in sneakers make sense for a long night of standing. I like how the layers adjust as your bump grows.
13. Padmé Amidala Maternity Costume
A flowing gown gives you a fan-made Padmé Amidala costume that never pinches the belly. Choose a long ivory empire-waist maternity dress with wide sleeves, and sit a soft silver belt above the bump rather than across it. A lightweight hooded cape completes the shape. Polished low buns or a braided brown wig, pinned well away from your face, suit the character. Keep the makeup luminous with defined brows and a soft rose lip. A metallic cuff and a small silver clutch give enough sci-fi detail. Hide white or silver ballet flats under the hem, and pick this one for photos and indoor parties.
14. Pregnant Barbie Maternity Costume
Pregnant Barbie is head-to-toe pink and a lot of fun to style. Wear a bright pink maternity jumpsuit, a fitted midi dress or a stretchy top with wide-leg pants. A cropped pink jacket that ends above the bump keeps the silhouette sharp. Oversized sunglasses and a structured mini bag do a lot of the work. I'd only add a blonde wig if you already find wigs comfortable; synthetic wigs get hot fast when you're pregnant. Glossy pink lips and fluttery lashes finish the face. A lightweight pink cardboard frame for photos beats wearing a box. A personalized name tag makes it yours.
15. Cow And Farmer Maternity Couple Costume
Cow and farmer is a couple costume where the pregnant partner gets the comfy side. Build the cow on a white stretch dress or overalls with irregular black felt spots, soft ears, small horns and a pink belly panel over the bump. Two low braids and a few black-and-white face details with rosy cheeks are enough makeup. The farmer wears denim overalls, a plaid shirt, a straw hat and work boots, carrying a basket of faux vegetables. Black leggings and supportive white sneakers suit the cow. Matching bandanas link the two in photos. I'd keep the jokes kind; not every cow pun lands well with an expectant mum.
16. Bee And Beekeeper Maternity Couple Costume
Bee and beekeeper gives you a classic pairing that reads instantly. The pregnant partner wears a black maternity dress with wide yellow felt stripes curved around the bump, sheer wings and an antenna headband. Curve the stripes so they follow the belly; straight stripes look flat once you're standing. A low bun, yellow eyeshadow and a tiny black nose dot finish the face, with black tights and cushioned sneakers. The beekeeper needs cream pants, a light utility jacket, gloves and a wide hat with soft mesh. An empty honey jar makes the prop. Keep the wings compact for crowded rooms.
17. Bump Ahead Construction Maternity Costume
Bump Ahead is a pun that needs almost nothing. A reflective safety vest over a black maternity top and leggings is the whole base. Make the yellow diamond sign from foam board and clip it over the belly; foam board stays rigid without the weight of cardboard. A light plastic hard hat and work gloves add the construction details, and a utility belt works best worn low or carried as a crossbody. Fit your ponytail low so the hat sits comfortably. A coral lip keeps it polished. The reflective strips are a real bonus if you're walking the neighbourhood after dark.
18. Magic 8-Ball Maternity Costume
A black maternity dress is all you need for a Magic 8-Ball. Attach a big white felt circle with a bold black eight over the bump, and put a blue triangle with a cheeky answer like 'Baby arriving soon' on the back. Felt is the right choice because it flexes as you sit and stand. A black headband or small blue fascinator sits above a sleek ponytail. Blue liner and a neutral gloss repeat the limited palette. Oversized answer cards make a fun photo game for guests. Black tights with blue flats or sneakers keep you comfortable at a long event.
19. Solar System Maternity Costume
The solar system lets the bump be the sun or a big ringed planet. Decorate a navy maternity dress with soft felt stars and lightweight foam planets, leaving gaps so the fabric still stretches. A round gold fabric panel covers the belly, and padded wire wrapped in ribbon makes the rings. I'd bend the rings away from the body slightly so they don't press when you sit. A star headband over loose waves, shimmering blue eyes and silver highlighter finish it. Battery pin lights belong at the shoulders, never tight around the bump. Silver sneakers or navy flats handle the walking.
20. Beach Ball Lifeguard Maternity Costume
Beach ball lifeguard brings a bit of summer to Halloween. Sew curved panels of red, blue and yellow felt across the belly of a white maternity top so the bump becomes the ball. Red shorts over leggings, a sporty red jacket and a visor make the lifeguard. A whistle, sunglasses and a light foam rescue float are the props everyone recognizes. For a cold night, add a thermal layer under the top and switch the shorts for red joggers. Waterproof mascara and a peach lip keep the face fresh. White sneakers with good soles finish it for a casual party or photo session.
21. Fishbowl Bump Maternity Costume
A fishbowl panel turns your belly into a small underwater scene. Cut a large circle of pale blue felt and decorate it with fabric fish, bubbles, sea plants and pebbles, then attach it to a blue maternity dress. Skip rigid plastic over the bump; it's uncomfortable within an hour and catches light badly in photos. Blue ribbons on a headband suggest waves. Loose curls, aqua liner and pearly highlighter suit the theme. A shell purse or a small net bag of blue tissue paper is a fun prop. Keep the decorations flat so you can sit, and throw a cardigan over your shoulders for warmth.
22. Pearl In A Shell Maternity Costume
Pearl in a shell frames the bump in a glamorous way. Wear a white or pale pink stretch maternity dress, then make two light shell panels from painted craft foam, one above and one below the belly without closing around it. Foam is my choice here because it's lighter than cardboard and won't crease when you lean. Cover the bump with pearly fabric so it becomes the treasure. A pearl headband, drop earrings and a small clutch finish it. Champagne shadow and glossy lips suit the look. Mount the shells on a soft belt worn above the bump so they come off quickly.
23. Cat With Yarn Ball Maternity Costume
A rounded bump makes a perfect ball of yarn for this cat costume. Wear a black maternity dress or black top with flexible leggings. Cover a round belly panel with loosely looped pink, purple or blue yarn, couching it down with a few stitches; never wrap yarn around your body. Black ears, a soft detachable tail and fingerless gloves complete the cat. Draw whiskers with skin-safe makeup, and patch-test it on your wrist first, since pregnancy can make skin more sensitive. Two cardboard knitting needles with rounded tips are a fun prop. Black slip-on sneakers or flats finish it.
24. Classic Mummy Maternity Costume
A mummy built from strips attached to clothing is far more comfortable than one wrapped around the body. Start with an ivory maternity dress or top and leggings, then stitch or pin strips of light gauze across the clothing, leaving the bump area loose so it can stretch. Tea-stain a few strips if you want an aged look. A few shorter pieces over a soft headband and a loose low bun finish the head. Taupe shadow and warm beige makeup suggest age without wounds. Beige sneakers or flat boots with a little gauze work underfoot. Keep every strip clear of your feet.
25. Glam Witch Maternity Costume
A glam witch is the one I'd pick if you'd rather look stylish than silly. Choose a flowing black maternity dress with an empire waist or a stretchy velvet finish, and tie a deep purple cape loosely at the shoulders. A wide-brim pointed hat with faux flowers sits over soft waves. Plum eyeshadow, winged liner and berry lips give a polished face. A small twig broom with ribbon or a moon-shaped bag works as a prop. Black maternity tights and flat buckled boots finish it. In a crowded room, swap the cape for a purple cardigan, and keep the hem short enough for stairs.
26. Glam Vampire Maternity Costume
Red and black layers make a vampire feel dramatic without anything gory. Wear a black empire-waist maxi dress with a soft red cape or long burgundy cardigan. A velvet choker should sit loose; pregnancy can make anything tight around the neck feel worse as the night goes on. Small red earrings and a cameo brooch add period detail. Polished waves or a sleek low bun suit the look, with smoky grey eyes and a deep berry lip. A red goblet candy holder or an ornate fan is a safe prop. If you wear a cape, fasten it with snaps so it pulls free when you sit.
27. Little Red Riding Hood Maternity Costume
Little Red Riding Hood is recognizable from the hood alone, and a cape leaves all the room you need around the bump. Wear it over a white maternity blouse with a black or red empire-waist dress, or a knee-length skirt and leggings. Loose braids or soft curls frame the hood. Rosy cheeks and a berry lip balm keep the face fresh. A small wicker basket lined with gingham holds faux bread or your phone. Brown flat boots support you better than costume heels and fit the storybook feel. Fasten the cape loosely and keep the hem above the ankles for walking outdoors.
28. Queen Of Hearts Maternity Costume
A red empire-waist gown is the right base for a Queen of Hearts with room for the bump. Add black heart appliqués along the skirt and a white ruffled collar at the neckline. I'd use iron-on felt hearts with a few stitches at the points, since iron-on alone tends to peel on stretch fabric. A small crown on a headband stays put better than a loose one. A high bun or soft curls work, or a red wig if wigs don't bother you. Heart-shaped red lips and rosy blush give a storybook face. A foam and cardboard scepter, black tights and red flats finish it.
29. Scarecrow Maternity Costume
Scarecrow is the warmest costume on the list, since it's built on layers. Wear maternity overalls over an orange plaid shirt or a rust tunic, and tack fabric patches onto the knees, pockets and bump area with loose temporary stitches. A floppy straw hat, a sunflower pin and short raffia pieces at the cuffs add the farm details. Two loose braids sit nicely under the hat. Peach blush, a painted triangle nose and a few stitched lines around the mouth make friendly scarecrow makeup. Brown lace-up boots or sneakers finish it. Trim the raffia short; long pieces scratch and get stepped on.
30. Colorful Piñata Maternity Costume
Rows of bright fringe turn a plain dress into a cheerful piñata. Start with a comfortable sleeveless maternity dress or a stretchy tunic and leggings, then attach horizontal strips of fringe in pink, yellow, blue, purple and green, leaving extra ease around the bump. I always use fabric fringe instead of crepe paper; paper tears, sheds and bleeds colour if it gets damp. Small animal ears and a short fringed tail finish the shape. A braided ponytail with ribbons and bright liner suit the mood. Carry a star-shaped candy bag. Keep the bottom row of fringe above the ankles so it's safe to walk in.
Getting Through a Long Halloween Night Pregnant
The costume is only half the plan. Pregnancy changes how warm you run, how quickly your feet swell and how often you need a bathroom, so I plan the outfit around those things first and the character second.
Shoes and feet
Wear shoes you've already walked in, with a little room for swelling by the end of the night. Flats, sneakers and low block heels all appear on this list for a reason. Your balance shifts as the bump grows, and a costume heel on a dark doorstep is a bad idea.
Heat, layers and bathroom trips
Many people run warm in pregnancy, so I build costumes in layers you can peel off rather than one heavy piece. Jumpsuits and full-body suits look great but are awkward for frequent bathroom trips; a dress or separates is easier. Keep water and a snack in whatever bag or basket the costume uses, and plan a seat you can return to. If anything starts to feel tight around your waist, chest or neck, loosen it right away instead of waiting for the photos to finish.
A Bump Costume You Can Sit Down In
The costumes I'd come back to are the ones that make the bump the star and still let you sit, eat and walk without fuss. Start with breathable maternity clothing, then add soft belly panels, clear colours and light accessories. Supportive shoes matter more than any prop. Felt details over closet basics keep things simple, while a character or fairytale look takes a little more planning. Before you leave, check that every cape, fringe strip, tail and prop stays clear of your feet. Match the costume to your energy level that week, and you'll still have fun when the party runs late.
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