Halloween while pregnant is genuinely one of the better costume opportunities you’ll ever get, because you have a built-in prop that nobody else at the party has. Your bump is the whole costume — everything else is just context. The trick is picking something that leans into the belly rather than working around it, so you’re not spending the night tugging at something uncomfortable or explaining what you’re supposed to be.
Most of these costumes cost under twenty dollars and take maybe an hour to put together, which is exactly the energy you have at thirty-something weeks. Felt, fabric paint, a hot glue gun, and whatever maternity basics you already own — that’s the toolkit. No sewing machine required, no specialty stores, no ordering something that arrives three sizes too small.
A lot of these also work as couples costumes, which is great if your partner has been waiting for an excuse to dress up too. The ‘bump as the main character’ concept is genuinely funny every single time — people see it, they get it immediately, and you spend the whole night getting compliments instead of fielding questions about your due date.
I’ve pulled together eleven ideas that range from five-minute solutions to genuinely impressive DIY builds, so there’s something here whether you’re crafty or decidedly not. Pick one that matches your vibe, grab the supplies, and give yourself an afternoon. You’ve got this.
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Fried Egg Bump Costume with White Felt and Yellow Yolk
The fried egg is the original pregnancy Halloween costume for a reason — it’s immediately readable, costs almost nothing, and takes about twenty minutes to make. Cut a large white felt or fabric circle, then attach a smaller yellow circle right where your bump sits so the belly becomes the yolk. Shop White Felt Fabric on Amazon Wear it over a white or neutral maternity top and you’re done.

The sizing is forgiving, which matters when you’re working with a moving target — just make the white circle generous enough to frame your whole bump, and the yellow center about the size of a dinner plate. Hot glue holds the felt together perfectly for a single night’s wear, so no stitching needed.
This one works especially well if you’re attending a kid-friendly event because every age group gets the joke instantly. Pair with a chef’s hat if you want to lean into the breakfast theme, or keep it simple with black leggings and let the egg do the talking.
Miley Cyrus Wrecking Ball Costume with Barbie and Chain Necklace
This costume has a lot of payoff for how simple the actual assembly is — a long black T-shirt, a gray panel over the belly, a chunky chain necklace, and a small Barbie doll dressed in a light outfit and pink heels clipped to the chain so she swings in front of your bump. The bump is the wrecking ball, Barbie is Miley, and everyone at the party will figure it out within three seconds.

Two high space buns and clean, simple makeup complete the reference without requiring any real skill. The gray belly panel can be cut from any gray fabric and safety-pinned or lightly glued to your shirt — it just needs to read as a different texture against the black.
The Barbie attachment is the funniest part and also the easiest: a small safety pin through the chain works fine, or tie a piece of ribbon from the necklace to the doll. Black leggings keep the whole look comfortable enough for a long evening, which genuinely matters by the third trimester.
All-Black Magic 8 Ball Costume with White Number Circle
All-black maternity outfit plus a white felt circle with a black 8 printed or painted in the center — that’s the entire costume. The pregnancy bump does all the heavy lifting here because a round belly in an all-black outfit already looks exactly like a Magic 8 Ball before you’ve added anything. Shop Fabric Paint on Amazon Attach the circle at bump height and the illusion is immediate.

Add a sleek low bun and a pair of dark sunglasses and you go from costume to genuinely cool costume. It’s the kind of look that photographs well and doesn’t require any explanation, which is useful when you’re tired and just want people to laugh and move on.
If you want to add a small interactive element, write some classic 8 Ball responses on a strip of paper — ‘Outlook uncertain,’ ‘Ask again later’ — and hand them out when people ask about the baby. It’s a small detail that makes the whole thing feel thought through.
Peas in a Pod Costume with Green Felt Bump Cover
This one is genuinely sweet without being saccharine, and it scales perfectly if you’re expecting multiples. Green fabric shaped into a pea pod cradles your bump, with small green felt spheres attached inside to represent the peas — your belly is one of them. Shop Green Fabric and Stuffing on Amazon A flower crown adds a soft, garden-party finish that keeps the whole look cohesive.

The pod shape works best when it’s attached to a green maternity dress or a fitted green top, so the whole silhouette reads as one piece. Cut the pod from a slightly darker green felt than your base layer so the shape registers even in lower light, like at a Halloween party.
If you’re having twins or triplets, add more felt peas to match — it becomes a conversation piece and a sweet nod to your actual situation. Even for a singleton pregnancy the concept lands well, and the materials cost almost nothing from a craft store.
BB-8 Droid Costume with Orange and White Fabric Paint
Your round bump is genuinely the perfect BB-8 body — the proportions work almost too well. Paint the signature orange and blue geometric details directly onto a fitted white maternity top using fabric paint, or cut the shapes from felt and attach them. Shop Orange and Blue Fabric Paint on Amazon Pair with a white cardigan or hoodie to extend the droid’s color palette across the whole outfit.

Fabric paint on a tight shirt gives you the cleanest look because it moves with your bump rather than wrinkling. Use a pencil to sketch the shapes lightly before painting — BB-8’s pattern is geometric enough that freehand works fine, and slight imperfections read as charming rather than sloppy.
This is a brilliant option for Star Wars fans who want a costume that feels personal rather than generic. It’s also comfortable enough to wear for an entire evening, which puts it ahead of a lot of more elaborate maternity costumes that start feeling restrictive after an hour.
Winnie the Pooh and Christopher Robin Couples Costume
Your bump becomes Pooh’s iconic honey-loving belly, you wear a honey-colored maternity dress, and your partner pulls on a yellow polo with red shorts and carries a red balloon — Christopher Robin, instantly. Shop Yellow Maternity Dress on Amazon Small bear ears on a headband complete your side of the costume without requiring any real effort.

The color palette is warm and unfussy, which means you’re not hunting for anything too specific — a mustard or amber dress works just as well as a true honey shade. The partner’s costume is even simpler, and if they refuse to wear shorts in October, khaki trousers with a yellow top get the same read.
This is one of the best couples options on this list because it’s genuinely heartwarming without being cheesy, and it works as a pregnancy announcement costume too. The ‘bump as Pooh’ concept photographs beautifully, especially if you do a few posed shots with the red balloon.
Super Mario Red Overalls Costume with Power-Up Mushroom Bump
Red crop top, denim overalls worn loose over the bump, the classic red cap with the ‘M’ emblem — you know exactly what this looks like before I finish the sentence. Paint or attach a mushroom design to the bump area of your shirt as a nod to the power-up, because a growing baby is very much a power-up situation. Shop Mario Hat and Patches on Amazon

Overalls are genuinely one of the more comfortable things a pregnant person can wear, which makes this costume as practical as it is recognizable. The adjustable straps mean they fit at any stage of pregnancy, and you can wear the bib flipped down if you want the bump more visible.
The mushroom detail is optional but it adds a layer of specificity that separates this from a generic Mario costume — cut a simple red and white mushroom from felt and safety-pin it to your undershirt so it shows through the bib opening. The whole assembly takes maybe forty-five minutes including finding the cap.
Death Star and Stormtrooper Star Wars Couples Costume
Black outfit with white dots scattered across it for stars, a larger white circle placed over your bump for the Death Star’s superlaser dish — your belly is literally the weapon of mass destruction, which is darkly funny in exactly the right way. Your partner dresses as a stormtrooper or Darth Vader to complete the Imperial command center. Shop Fabric Markers and Glow Stars on Amazon

White fabric paint or white felt circles work equally well for the star details — just scatter them loosely across a fitted black maternity top and concentrate the larger Death Star circle right at the apex of your bump. The more precise you make that central dish, the stronger the recognition.
This costume photographs dramatically well in dim light, which is convenient for Halloween parties where the lighting is usually moody anyway. It’s also a great conversation starter because people immediately start debating which partner has the better costume, and the answer is obviously you.
Bank Robber Stolen Goods Couples Costume with Dollar Sign Bump
Striped shirts, black eye masks, and a white fabric piece over your bump painted with a dollar sign to represent the ‘stolen goods’ — the pun writes itself and it lands every single time. Shop Black Eye Masks on Amazon The concept is that you’re both bank robbers and the loot is, well, currently inside you.

Classic black and white horizontal stripes read as ‘criminal’ immediately, and the eye masks pull the look together for about three dollars at any party supply store. The dollar sign on the bump can be as simple or as elaborate as you want — even a rough green dollar symbol on a white oval of fabric gets the joke across.
This works as a last-minute costume if you already own a striped shirt, which most people do. It’s also genuinely funny in a self-aware way that plays well in mixed company — the humor is in the pun, not anything uncomfortable, so it works for family events and adult parties equally.
Disco Ball Bump Costume with Silver Paint and Retro Partner Look
A fitted silver maternity top becomes a disco ball when you add silver fabric paint in a grid pattern, or attach small mirror tiles with craft glue for actual light-catching shimmer. Your partner channels John Travolta in a white suit, and together you’re the entire Saturday Night Fever experience. Shop Silver Sequin Fabric on Amazon

The mirror tile version is genuinely stunning at a party because it actually catches and reflects light every time you move — even small adhesive mirror squares from a craft store give you this effect without the tiles being heavy enough to cause any discomfort. Paint is easier and faster if you’re short on time, and still reads clearly.
This is one of the dressier options on this list, which is useful if you want a costume that feels a little more elevated than average. A silver headband or some silver eye shadow on you, plus platform shoes on your partner, and the era reference is locked in completely.
Planet Earth and Astronaut Couples Costume with Painted Bump Globe
Blue and green fabric paint turns your bump into a recognizable globe — keep the land masses loose and gestural rather than geographically accurate and it still reads perfectly as planet Earth. Your partner goes as an astronaut, or if you want a solar system angle, they can dress as the moon. Shop Earth Planet Fabric Print on Amazon The concept of carrying a whole world inside you is genuinely beautiful and the costume makes that literal.

A printed Earth image on a circular piece of fabric, attached to a fitted blue maternity top, works just as well as freehand painting if you’re not confident with a brush. The blue base of the shirt reads as ocean, so even minimal green landmass shapes on the bump complete the illusion.
This is one of the more meaningful costumes on the list — it’s funny and clever, but there’s also something genuinely moving about it for anyone who knows what it actually means to be growing a human. It photographs beautifully and works equally well for a family party or a late-night Halloween event.
How to Pull Together a Pregnancy Halloween Costume in Under 2 Hours
Start by identifying your base layer — whatever maternity clothes you’re already comfortable in, in the right color for your costume. Most of these looks are built on a fitted maternity top or dress that shows your bump clearly, so the silhouette does most of the work before you’ve added a single prop. Black, white, and red are the most useful base colors because they cover half the costumes on this list.
Felt and fabric paint are your two most important materials, and both are available at any craft store for a few dollars. Felt cuts cleanly without fraying, sticks with hot glue, and holds its shape for a full evening of wear. Fabric paint goes directly on your shirt and dries fast — sketch your design in pencil first, paint in the base color, let it dry for thirty minutes, then add any detail work. You don’t need to be artistic; geometric shapes and simple symbols are the most readable from across a party room anyway.
For couples costumes, plan your partner’s look first because it usually requires more assembly time than yours. Your costume is centered on your bump and is inherently simple; theirs needs to be readable on its own as a standalone character. Give them a head start and then build your bump decoration to match once they’re put together — it’s easier to see what details you need to add when you can check the pairing in real time.
Comfort is not optional — it’s the main criteria. If a costume requires a waistband, tight elastic, or anything that sits directly on your bump and applies pressure, skip it or modify it heavily. Safety pins and fabric tape are your best tools for keeping things in place without constriction. Plan your shoes before you plan anything else; comfortable, supportive footwear will determine how long you actually enjoy the evening.
Pick Your Look and Make It Tonight
Every single one of these costumes works because it does the same thing: it makes your bump the star instead of something to work around. That shift in framing is what makes pregnancy Halloween costumes so consistently great — you’re not fighting your body, you’re collaborating with it. Shop Blue Squid Face Paint Crayons on Amazon Shop Maydear Face Body Paint on Amazon Shop UCANBE Face Body Paint on Amazon Shop Lictin Rainbow Body Paint on Amazon Whether you go with something punny like the fried egg or something epic like the Death Star, the bump is doing ninety percent of the work for you.
Pick the one that makes you laugh when you picture it, grab the supplies, and give yourself an afternoon. Shop MEICOLY Body Paint Set on Amazon Shop Fried Egg Supplies on Amazon Shop BB-8 Costume Supplies on Amazon Shop Pooh Couples Costume on Amazon These are genuinely the moments you’ll want photos of later — not because the costumes are elaborate, but because of exactly what they represent about where you were that October.
FAQ
How do you make a DIY pregnancy Halloween costume at home?
Start with comfortable maternity clothes in your base color, then use fabric paint, felt pieces, or printed images to decorate your bump area — hot glue and safety pins are all you need for assembly. Most pregnancy costumes work by turning your belly into the main feature, like a planet, ball, or food item, so the concept is simple even if the execution looks polished. Keep your toolkit to felt, fabric paint, and a hot glue gun and you can make almost anything on this list in under two hours.
What are the best pregnant Halloween costume ideas for couples?
Couples costumes work best when your bump becomes part of a larger story — Death Star and Stormtrooper, planet Earth and astronaut, Winnie the Pooh and Christopher Robin, or disco ball and John Travolta all follow this logic cleanly. The key is making your pregnancy the visual centerpiece so the pairing makes immediate sense to anyone who sees you. Build your partner’s costume to orbit yours rather than compete with it.
Where can I buy maternity Halloween costumes online?
Most pregnancy costumes are genuinely better made at home because store-bought versions rarely fit a specific bump size or allow for the belly-forward styling that makes these costumes work. Use regular maternity clothes you already own as your base and add DIY elements — felt, fabric paint, and accessories — for a perfect fit at a fraction of the cost. If you want to buy components, craft supply sites and Amazon are more useful than costume-specific retailers.
What Halloween costumes work best in the third trimester?
Choose costumes that celebrate your bump rather than work around it — planets, balls, food items, and pop culture characters whose round shape matches your silhouette are all strong choices. Avoid anything with a fitted waistband, tight elastic, or complex attachments that sit directly on your belly. Comfort genuinely determines how long you enjoy the evening, so prioritize it over elaborate construction.
What are the funniest pregnancy Halloween costume ideas?
The funniest options play with expectations by making your bump the punchline — a Magic 8 Ball, fried egg, or bank robber’s ‘stolen goods’ all land immediately because the joke is visual and requires no explanation. Pun-based costumes where the pregnancy itself is the concept tend to get the strongest reactions because they feel clever rather than just cute. The wrecking ball with a hanging Barbie doll is a particularly reliable crowd-pleaser.
How do you decorate a pregnant belly for Halloween?
Use your bump as the canvas — paint designs directly onto a tight maternity shirt with fabric paint, attach felt shapes with hot glue or safety pins, or use printed images affixed to fabric. The goal is making your belly the focal point rather than disguising it, so whatever you add should sit at the apex of the bump where it’s most visible. Test your design on a flat piece of fabric first if you’re nervous about painting directly on the shirt.
What are easy last-minute pregnancy Halloween costumes?
The easiest options use what you already own — all-black clothes plus a white felt circle with an 8 for a Magic 8 Ball, or a white top plus yellow felt for a fried egg, both take under thirty minutes. Striped shirts and an eye mask for the bank robber concept work if you have those basics on hand. Sports team jerseys with your bump as the ‘ball’ are another zero-prep option that always gets recognized.
Can you use a pregnancy Halloween costume as a baby announcement?
Absolutely — costumes like ‘peas in a pod,’ ‘bun in the oven’ with baker attire, or the planet Earth concept work beautifully as announcement vehicles because the imagery connects directly to the news. Halloween party photos become your announcement content, which makes the reveal feel special and unexpected rather than staged. Just make sure anyone who should hear the news privately has already been told before the costume goes public.
How much does a DIY pregnancy Halloween costume typically cost?
Most of these costumes come in under twenty dollars when you’re using maternity clothes you already own as the base layer — felt runs about two to five dollars for a large sheet, and fabric paint is similarly inexpensive at any craft store. The pricier elements are props like the Barbie doll for the wrecking ball costume or mirror tiles for the disco ball, but even those add only a few dollars. Couples costumes can run slightly higher if one partner needs specific pieces, but thirty dollars total is very achievable.