Most pregnant women I dress for Halloween want two things at once: a costume that has fun with the bump, and one they can still sit, walk and stand in by ten o'clock. Both are easy once you build on stretch clothes and keep anything stiff off the belly. A soft maternity dress or leggings and a long top can turn your bump into a pumpkin, an avocado pit, a Magic 8 Ball or a ball of yarn. You can also skip the bump joke completely and go as a witch, an animal or a film character. Below are 35 maternity looks, each with the clothing base, hair, makeup, accessories, a prop and shoes you can actually stand in.
Building on a Bump Without Pressing On It
Almost every costume below puts something on or around the belly, so I build them all the same way. The decoration goes on a separate layer, never straight onto a dress you love and never onto skin.
- Use an old maternity tee or a simple belly panel as the canvas, so felt faces, labels and pom-poms can come off later.
- Pin or stitch rather than glue. Glue cracks on stretch fabric as it pulls over the bump, and safety pins let you shift a design up as you grow.
- Hang anything stiff, like foam board, cardboard or a shell, from wide shoulder straps. The weight should sit on your shoulders, not around your waist.
- Make it close to the date. A bump can change a lot in a few weeks, so build the costume late or leave room to move the pieces.
Before you add any details, put the base on and sit down. Whatever pinches, rides up or digs in while you're sitting will only get worse over an evening, so fix it then.
1. Pregnant Pumpkin Costume
The pumpkin is the first one I'd suggest if you've never made a costume, because the bump does the shaping for you. Wear a fitted orange maternity dress or an orange stretch top with leggings. Cut the black felt face and attach it with safety pins or a few loose stitches so you can take it off and wear the dress again; glue on stretch fabric cracks as the knit moves. Check the face sits centred while you're standing, since it shifts once you sit. A cropped green cardigan or a felt leaf collar for the stem, a relaxed bun with a leaf headband, and peach blush with a little orange shadow. A pumpkin treat bag, plus black slip-ons or cushioned ankle boots.
2. Maternity Skeleton Costume
A black maternity dress becomes a skeleton with white bone shapes and a tiny baby skeleton over the bump, which is the detail everyone laughs at. A long-sleeve soft knit is warmest; a printed maternity tee with black leggings is more flexible. I'd use iron-on vinyl or stitched felt for the bones rather than fabric paint, since paint stiffens and cracks when the fabric stretches over a growing belly. High ponytail or a black-and-white headband. Pale foundation, smoky grey shadow and simple black cheek lines, nothing gory. Bone-print gloves, a rib-cage tote and supportive black sneakers with white laces.
3. Pregnant Winnie The Pooh Costume
Pooh's round shape suits a bump better than almost any character. Start with a golden-yellow maternity dress or yellow leggings and a long yellow top, then layer a cropped red tee over the upper half. The red tee is the bit to get right: it should end just above the widest part of the belly, so try a few lengths and hem or knot it. A low bun with soft bear ears, rosy blush, a small brown nose and warm neutral eyes. A light plastic or papier-mâché honey pot rather than real ceramic. Red ballet flats, yellow sneakers or cushioned brown loafers, and it's cosy for trick-or-treating.
4. Pregnant Avocado Costume
The avocado is a great joke because your bump really is the pit. Wear a fitted brown maternity top or dress, then cut the green avocado shape from felt or foam board with a generous hole for the belly; too tight an opening and you'll feel it press when you sit. Hang it from broad shoulder straps rather than tying anything around the waist. Green leggings, green or brown sneakers, loose waves and a leafy headband. Green liner, peach blush and gloss. A grocery tote of faux produce. If you're making it from foam board, round the bottom edge, because a sharp corner digs into your thighs when you sit.
5. Pregnant Gumball Machine Costume
Pom-poms over a bump are cute and tempting to touch, and people will touch them. I'd stitch each one on, or use felt circles if you'd rather not sew, because glued pom-poms get pulled off within an hour. A white maternity shirt for the glass globe, a silver felt coin slot under the bump, and red maternity leggings or a knee-length red skirt for the base. A bouncy ponytail with a rainbow headband. Bright shadow and pink lipstick are plenty. A clear candy bucket of wrapped sweets, never loose ones. White sneakers or red cushioned flats.
6. Bun In The Oven Costume
Bun in the oven is the pun everyone knows, and it's all about the box. A black maternity top and leggings go under a light cardboard oven worn like a sandwich board, with wide holes cut for the head, arms and belly. The shoulder straps should carry all the weight; nothing should lean on your stomach. Paint on knobs, a window and a bread bun peeping out. A gingham head scarf, soft neutral makeup and an oven mitt on one wrist, with a wooden spoon if you like. Black slip-ons. Cut the oven short enough to sit down in, and check you can manage the bathroom without taking it all off.
7. Pregnant Magic 8 Ball Costume
The Magic 8 Ball is the costume I'd hand to someone who has an evening and a black dress. A fitted black maternity dress, a white felt circle over the bump and a blue triangle in the middle, with a prediction like “Coming Soon” in removable fabric letters. Stay monochrome below: black maternity tights and cushioned black flats. A sleek ponytail or a straight black wig, silver shadow and a glossy neutral lip. A small stack of fortune cards for guests to pick from. It photographs clearly because the bump is the whole idea, and felt pieces pinned on can come off for a baby-shower dress later.
8. Pregnant Mother Earth Costume
Mother Earth suits a flowing maxi, and green or ivory both work. The ivy is the part to watch: faux vines are wired and catch on things, so I wrap them loosely on one shoulder and let them run down the skirt, ending well above your feet. Over the bump, a removable fabric globe or a painted belly panel in blue and green. Loose waves with a crown of artificial leaves and small flowers. Green liner, golden highlighter and rosy cheeks. A basket of silk flowers is a light prop. Flat lace-up sandals or supportive neutral flats.
9. Pregnant Disco Ball Costume
A disco-ball bump is the most fun to watch under party lights. Cover a round belly panel with silver sequin fabric or small reflective foam squares and fix it to the dress, never to your skin. A silver maternity dress underneath, and a white faux-fur jacket or silver cardigan if you'll be cold. Sequins scratch, so I'd keep a soft layer between the panel and you. A high ponytail or big waves with a metallic headband, shimmery shadow, gloss and a few face gems. A light microphone prop and silver hoops. Low platform sneakers rather than wobbly heels, so you can still dance.
10. Pregnant Basketball Player Costume
Basketball is the bump costume I suggest when comfort comes first. An orange maternity shirt with curved black seam lines drawn or taped across the bump; fabric marker in black works well and won't peel. Loose basketball shorts over maternity leggings, and an open sleeveless jersey in your favourite colours so the ball still shows. A high ponytail and a terry headband, a little bronzer and eye-black stripes. A small scoreboard sign is easier to carry than a real ball. Cushioned high-tops. It's easy to pair with a partner in a jersey for a sports theme.
11. Pregnant Beach Ball Costume
A beach ball is a good choice if you run warm or the party is indoors, since it's built on a light white layer. A white maternity dress, or a white stretch top and leggings, with curved felt wedges in red, blue, yellow and green meeting at a small white circle in the centre of the bump. Cut the wedges with a paper template first; freehand they never meet neatly. A sun visor, bright sunglasses and a loose cover-up. A side braid or relaxed ponytail, coral lipstick and water-resistant mascara. A beach bucket of wrapped candy, and white canvas sneakers or supportive sandals.
12. Pregnant Pearl In A Shell Costume
The pearl in a shell takes a bit more building, but it's light if you do it right. A white satin maternity dress is the base, with a soft white or pale pink round panel over the bump for the pearl. The shell comes from painted foam board on wide shoulder straps, opening around your body so nothing rests on the belly. Satin shows every mark, so I'd dress last and keep makeup off the neckline. Loose waves with pearl pins or a small shell headband. Luminous highlighter, lavender shadow and a glossy pink lip. A shell-shaped bag holds your phone, and silver flats or white cushioned sandals finish it.
13. Pregnant Solar System Costume
The solar system puts your bump at the centre of everything, which is the joke. A navy or black maternity maxi with removable felt stars and small foam planets, and either a sun or an Earth over the belly. I'd run the planets along a soft garland from one shoulder rather than around the waist, where they'd press when you sit. A sleek bun with silver star clips. Blue shadow, a dusting of shimmer and tiny star stickers. A silver star wand or a toy telescope. Metallic sneakers give shine and support, and nothing here needs a tight bodysuit.
14. Pregnant Moon And Stars Costume
Moon and stars is the softer, dressier choice of the space looks. A midnight-blue maternity gown with a big silver crescent curving around the side of the bump, and gold and silver stars across the dress. Felt or fabric stars move with you; stiff glitter card bends and creases as soon as you sit. A low braided bun with moon clips. Soft navy shadow, silver liner and a touch of highlighter. A small LED star lantern, never a candle. Silver ballet flats or navy slip-ons, and it suits a party or a quiet night at home equally.
15. Pregnant Snow Globe Costume
A snow globe usually means a dome, which is miserable to wear pregnant. The clear umbrella gets the effect without boxing you in. A white maternity dress, a sparkly cardigan and white tights for the snowy base. Hang light white pom-poms and iridescent snowflakes on the outside of the umbrella, and hold it above or just behind you. A silver belt above the bump only if it feels comfortable. Soft curls with a snowflake headband, icy blue shadow, pink blush and a pearly lip. White low-heeled ankle boots or supportive sneakers. Close the umbrella in crowded rooms; the spokes sit right at other people's eye level.
16. Pregnant Fishbowl Costume
The fishbowl is the cheapest of the sea costumes, and it adjusts as your bump grows because nothing is rigid. A pale blue maternity shirt with felt fish, bubbles, seaweed and a curved bowl outline arranged around the belly. Pin the bowl outline last, standing in front of a mirror, so the curve follows your shape. Blue maternity leggings and a turquoise cardigan. A wavy ponytail with shell clips, aqua liner and rosy cheeks. A toy fishing net with a short handle, full of wrapped candy. Blue slip-ons or cushioned flats.
17. Pregnant Aquarium Costume
The aquarium is the fishbowl's dressier sister, built on a flowing blue maternity maxi with fabric coral, bubbles and sea life, and a friendly fish or a tiny submarine over the bump. A sheer blue cape suggests moving water, but hem it well above the ankle; sheer fabric is slippery and easy to step on. Loose waves with a coral headband. Turquoise shadow, luminous highlighter and a soft pink lip. A treasure-chest purse for your phone. Metallic aqua flats. Because nothing is stiff, it's easy to wear for a party or for maternity photos.
18. Pregnant Peas In A Pod Costume
Peas in a pod is the one I'd suggest to anyone who needs to sit down a lot, since it's all soft felt on a dress. A green maternity dress with three large soft green circles down the front, the biggest over the bump, framed by two lighter-green felt panels for the open pod. Stuff the circles lightly with batting if you want them rounder, but keep them soft. A green beanie with a felt stem, or a braid with leaf clips. Pink blush and green liner. A garden basket of faux leaves. Green sneakers or brown ankle boots.
19. Pregnant Fried Egg Costume
Your bump makes a convincing yolk, and the fried egg is easy enough for any stage of pregnancy. A loose white maternity tunic or a simple white dress, with an oversized yellow felt circle over the belly; a layer of batting behind it rounds it out without any pressure. Cut the white of the egg as an uneven shape and keep it short enough to walk freely. Yellow leggings or white maternity tights. A high bun with a yellow scrunchie, sunny gold shadow and peach blush. A cardboard toast slice or a breakfast tote, and white sneakers with yellow laces.
20. Pregnant Cow Costume
A cow has plenty of room for a growing bump and very little to go wrong. A spotted maternity dress, or black felt patches pinned onto a white tunic; cut the spots as uneven blobs rather than circles so they look like a real cow. Soft ears and small fabric horns on a headband, and a pink felt oval over the belly. Two low braids, rosy cheeks, a winged liner and a small pink nose. A light plastic pail for candy, never metal or glass. Black leggings, then white sneakers or cushioned black boots. It works alone, with a farmer partner or in a family farm group.
21. Pregnant Cat With Yarn Costume
Cat with a ball of yarn is a clever twist, and the yarn is where I'd take care. Thick yarn loops on a removable belly panel look great, but loose strands trail and catch on heels, so I'd couch them down with a few stitches every few inches. A black maternity dress and fitted black leggings, plus a tail, a soft ear headband and a sleek ponytail or loose waves. A tiny cat nose and whiskers in skin-safe makeup with a subtle wing. An oversized cardboard knitting needle with a rounded tip. Black sneakers or flat ankle boots for steady footing.
22. Pregnant Bumblebee Costume
A striped maternity dress turns into a bee with very little else, and the stripes curve nicely over a bump. Keep the wings small: mesh wings on soft elastic loops, narrow enough to get through a doorway without turning sideways. An antenna headband and a high bun or playful ponytail. Yellow shadow, black liner and rosy cheeks. A small flower bouquet or a honeycomb treat bag. Black maternity tights, and yellow sneakers or cushioned black flats. It's easy to coordinate with a beekeeper partner or a garden-themed family.
23. Pregnant Ladybug Costume
The ladybug is a red dress and black felt dots, so it's one of the quickest here. Choose a soft skater or T-shirt maternity dress with room around the belly; stiff fabric pulls the dots out of shape. Small rounded wings on the upper back and a black antenna headband. A black cardigan and maternity leggings keep you warm without hiding the red. A low ponytail or loose curls, red lipstick, soft blush and neat black liner. A flower-shaped bag or a green candy bucket. Black slip-ons or supportive ballet flats, and it dresses up or down easily.
24. Pregnant Scarecrow Costume
For a pregnant scarecrow, I'd start with a loose plaid shirt over a brown or rust maternity dress, tied above the bump or left open, whichever is more comfortable. A soft straw-style hat with fabric sunflowers and a few short bits of raffia. Raffia scratches, and skin can feel more sensitive in pregnancy, so I keep it on the hat and off the neck and wrists. Two loose braids, round rosy cheeks, a little painted nose patch and soft stitched lines at the mouth. A fabric crow or a mini hay-bale purse. Maternity tights and supportive brown ankle boots, and it layers well for cold or unpredictable weather.
25. Pregnant Witch Costume
A witch is the classic I'd pick if you'd rather not make the bump the theme. A long black stretch dress with ruching around the belly fits without squeezing, under a purple velvet cape and a wide-brim pointed hat. Striped maternity tights if the dress is shorter, or black leggings for warmth. Loose waves under the hat. Purple shadow, black liner and a berry lip. A small decorative broom or a spellbook-shaped purse. Buckled flat ankle boots are kinder than tall heels for a long night at a party or on your own doorstep with the candy bowl.
26. Pregnant Mummy Costume
A mummy usually means tight wrapping, which is the last thing you want pregnant. Instead, sew or pin strips of cream gauze across a soft ivory maternity dress, letting the ends hang loose and keeping them well clear of your feet. Run the strips diagonally around the bump to show its shape, and never wrap anything around your stomach itself. Cream maternity leggings and a gauze headband over a messy low bun. Taupe shadow, a pale lip and gently defined brows. A small scroll or a gold purse. Beige sneakers or flexible ankle boots.
27. Pregnant Ghost Costume
A flowing white maternity maxi is a much nicer ghost than a sheet, and you can actually see where you're going. Pick a light dress with bell sleeves and add a sheer white cape that stops above the ankle. Silver stars or soft grey felt swirls around the bump add interest. A long white wig, or your own hair in loose, airy waves. Pearly highlighter, pale silver shadow and a soft pink lip instead of white face paint. A small LED lantern. White sneakers, ballet flats or cushioned ankle boots. It's a gentle look for family events.
28. Pregnant Glam Vampire Costume
For a glam vampire, the cape has to rest lightly; heavy velvet dragging at the neck gets tiring fast, so I'd choose a lighter velvet or a velour. A burgundy maternity maxi under a black cape. Put the jewelled collar or cameo at the neckline so nothing presses on the bump. Polished waves or a sleek black wig. Smoky plum shadow, strong brows, subtle contour and a deep red lip. Fangs are fine for a photo but not needed. A vintage black bag or a goblet-shaped accessory. Comfortable black flats or low block-heel boots, and no blood or wounds needed.
29. Pregnant Fairy Costume
A fairy goes well with a bump if you move the sash up. A pastel maternity dress with a soft tulle overlay, and a floral sash tied above the bump instead of across it. Small translucent wings with rounded edges; big pointed ones snag hair and doorways. A loose braid with artificial flowers and tiny butterfly clips. Lavender shadow, luminous highlighter, pink blush and a little shimmer. A short, light star wand. Ballet flats or supportive pastel sneakers. It sits nicely next to woodland animals or other storybook characters in a family group.
30. Pregnant Queen Of Hearts Costume
The Queen of Hearts is usually built on a corset, and I'd never put that on a pregnant client. A red maternity dress, a black cropped jacket and a white heart-shaped collar give the look instead, with black and white details placed above and below the bump. A gold crown headband that's light enough to forget. An elegant updo or a red heart clip at one side. Red lipstick, a tiny heart on one cheek, defined liner and rosy blush. A fan of oversized playing cards or a heart-shaped purse. Black maternity tights and red cushioned flats.
31. Pregnant Midge Costume
Midge is a fun retro doll reference, and the costume is mostly colour. A purple maternity dress with a coordinating jacket, chunky pastel costume jewellery, a bright handbag and oversized sunglasses. Smooth shoulder-length waves or a neat auburn wig. Blue shadow, rosy blush and glossy pink lipstick. A doll-box frame is fun for photos, but keep it open-fronted and light, and put it down for the rest of the night. White sneakers or pastel flats. It works on its own or next to a partner in a bright striped shirt and vintage-style trousers.
32. Pregnant Juno Costume
Juno is the costume for anyone who'd rather wear real clothes. A striped tee over a long-sleeve top, with a knee-length maternity skirt or relaxed jeans with a belly panel, and an olive utility jacket if it's cool. A casual ponytail and a simple headband, light mascara, peach blush and tinted balm. A big reusable drink cup or an old-fashioned phone prop makes the reference click. Well-worn sneakers. Every piece goes back into your maternity wardrobe afterwards, which I think is the real reason to choose it.
33. Pregnant Pasta Sauce Jar Costume
A pasta sauce jar is a food pun with almost no construction. A red maternity dress with a big homemade label in felt across the front, held with removable fabric tape or safety pins at the corners. Write the label large enough to read across a room; small lettering just looks like a red dress. Green leaf details at the neckline and a red gingham scarf in your hair. A low bun or soft waves, warm red lipstick, winged liner and peach blush. A wooden spoon and a basket of faux tomatoes. A white cardigan for warmth, and red sneakers or green flats. A partner dressed as a chef makes it even clearer.
34. Pregnant Bump Ahead Costume
Bump Ahead is a last-minute pun that's handy early in pregnancy, when the bump may not be big enough to carry a belly costume. Black maternity leggings, a fitted black shirt and an open reflective safety vest. Fix a light yellow diamond sign reading “Bump Ahead” to the vest, above or beside the belly rather than flat against it. A plastic hard hat over a low ponytail or braid. Mascara, bronzer and tinted balm. A foam traffic cone or a rolled paper blueprint. Supportive work-style boots or sturdy sneakers.
35. Pregnant Kangaroo Costume
The kangaroo turns the bump into a pouch, which is a sweet idea for an animal look. A soft brown maternity jumpsuit, or brown leggings with a long stretch tunic. Sew a beige fabric pouch over the lower front, loose and open around the belly, and tuck a small plush joey in so its head peeks out. I'd add a safety pin through the joey's back into the pouch, or it falls out every time you bend. Rounded ears on a headband and a light fabric tail pinned at the back. A low braid, warm brown shadow, a small black nose and rosy cheeks. A leaf-shaped treat bag, and brown sneakers or cushioned slip-ons. It fits a family animal theme well.
Swollen Feet, Warm Rooms and the Bathroom Question
The costume itself is rarely what spoils a pregnant woman's Halloween. It's the practical stuff. A few things I'd plan for:
- Shoes: feet often swell by evening, so pick a pair you've already worn for a full day, and avoid anything you've just bought.
- Heat: felt, faux fur and foam are warm, and a packed room gets hot quickly. Wear a breathable cotton layer underneath and choose a cape or cardigan you can slip off.
- Bathroom trips: one-piece jumpsuits and sandwich-board boxes are hard to get out of fast. Separates, or a dress with the decoration on top, are far easier.
- Somewhere to sit: if the costume has a box, shell or wings, make sure you can sit back in a chair with it on, or that it lifts off in one go.
Skin can be more sensitive in pregnancy, so patch-test any face paint, adhesive or glitter on the inside of your wrist a day before. Take it all off at the end of the night with a gentle cleanser. Bring a small bag with snacks, water and a spare pair of flats too; you won't regret it.
Test the Costume Sitting Down, Not Just Standing
A good maternity costume doesn't need complicated supplies, just stretch clothes, light decorations and shoes that support you. If you want a laugh, go for the pumpkin, avocado, gumball machine or one of the food puns. For something softer, the fairy, Mother Earth, pearl or moon costume is the way to go. The classic witch, ghost, vampire and mummy keep the Halloween feel without any gore. Whichever you pick, wear it at home for an hour before the party, sit in a chair and a car seat, and keep long fabric clear of your feet. Nothing should press on the bump, and if something does, change it.
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