Best Maternity Halloween Costumes 2026: 5 Bump-Friendly Picks for Pregnant Moms

How we picked

Updated October 23, 2026. This guide is for anyone pregnant this Halloween who wants a costume that plays with the bump instead of hiding it. We didn't wear-test these costumes. We searched Amazon for maternity and pregnancy Halloween costumes, pulled each listing's title, image, and feature bullets through Amazon's Creators API on October 23, 2026, and kept the ones whose listings were specific about what's in the box and how it fits. We left out knock-off character costumes that imitate a famous cartoon without a license, and we left out anything with a listing too vague to describe honestly. Safety notes come from the U.S. Consumer Product Safety Commission (CPSC), the FDA, and the American College of Obstetricians and Gynecologists (ACOG). Prices are left off because Halloween prices change by the hour this close to the holiday.

What we looked for

1. Room for the bump: stretch fabric, a ruched side, a one-size tunic, or an apron that sits over whatever you're already wearing.
2. Easy on and off. Pregnancy means frequent bathroom trips, and a costume with a back zipper and three layers turns every trip into a project.
3. Comfortable for a few hours on your feet: nothing that squeezes the waist, no heavy headpieces.
4. A range of effort levels, from a T-shirt to a DIY kit.
5. A listing specific enough to describe without guessing, including size information where the listing gives it.

Five maternity Halloween costumes (features from live listings)

These suit different moods and effort levels, so they aren't ranked. Many come in several sizes or colors, and each size can have its own listing, so confirm the size on the exact page you buy from. With Halloween close, check the delivery date before you order.

1. Rasta Imposta Bun in the Oven: the classic pregnancy pun

Rasta Imposta's Bun in the Oven costume is the one most people picture when they hear "pregnant Halloween costume." The listing describes it as a tunic plus a bun, in white, in one size, made of ultra-soft, breathable fabric, and calls it a simple, easy-to-wear costume. A tunic is the right shape for pregnancy: it hangs over the bump instead of gripping it, and you can wear leggings and a long-sleeve top underneath on a cold night. The listing doesn't give measurements for the one size, so if you're late in the third trimester, look at the listing photos and the size details on the page before you count on it fitting.

Check Rasta Imposta Bun in the Oven on AmazonAffiliate link (tag bestprod0fcf1-20). One size; no measurements in the listing text.

2. Crazy Dog Baby Skeleton Maternity Tee: the no-effort option

If you want to show up in something festive without wearing an actual costume, the Crazy Dog baby-skeleton maternity tee prints a tiny skeleton over the bump on a black shirt. The listing describes a ruched, stretchy, relaxed maternity fit, ringspun cotton in a pre-shrunk poly-cotton blend, and printing in the USA, with plus sizes up to 3XL. One useful detail the listing is upfront about: sizes tend to run small, so it recommends ordering up if you're between sizes. The upside of a tee is that you can wear it to a work party, trick-or-treating with an older child, and a pumpkin patch, and it doubles as a pregnancy-announcement photo outfit. Pair it with black leggings and a skeleton-glove or headband if you want to push it further.

Check Crazy Dog baby-skeleton maternity tee on AmazonAffiliate link (tag bestprod0fcf1-20). Listing says sizes run small.

3. Deerose Boo Ghost Maternity Dress: a costume that's also a dress

Deerose's Halloween maternity dress is a black crewneck mini with a ghost print, short sleeves, and side ruching, which the listing says is designed to accommodate a growing bump. The listing gives US sizing: S (4–6), M (8–10), L (12–14), XL (16–18), and 2XL (18–20), and notes that the dress is a slim fit, so check the size chart on the product page. It's described as soft, breathable fabric. A fitted dress photographs well with a bump, and it's the most "normal clothes" option here after the tee. For an October night, add opaque tights and a cardigan, and keep a pair of flats on.

Check Deerose Boo ghost maternity dress on AmazonAffiliate link (tag bestprod0fcf1-20). Slim fit per listing; check the size chart.

4. Floraltop Gumball Machine Apron Kit: the DIY bump costume

The gumball machine is a favorite bump costume because the bump becomes the glass globe full of gumballs. Floraltop's 3-piece kit gives you the parts: a printed apron (the listing gives 23.62 by 31.5 inches, or 60 by 80 cm), a red beret sized M for head circumferences of 22 to 23 inches, and a pack of 500 pom poms, each about 0.79 inches (2 cm), to sew or glue on. The listing describes the apron as lightweight, water-resistant fabric. Because it's an apron, it goes over whatever fits you right now, so there's no sizing gamble on the costume itself. Plan an evening for the gluing. Fabric glue or a few stitches will hold better than a hot-glue gun on a fabric that bends.

Check Floraltop gumball machine apron kit on AmazonAffiliate link (tag bestprod0fcf1-20). DIY: pom poms need sewing or gluing.

5. Maiteenly Preggo Chef Couples Costume: when your partner wants in

This 4-piece couples set turns the pregnant partner into a jar of "Preggo" sauce and the other partner into the chef. Per the listing, the pregnant partner's piece is a reddish-brown apron printed with a tomato and the word Preggo, and the chef gets a white apron, a matching hat, and a soup spoon. The listing says the aprons are 100% polyester with a halter neck, adjustable sizing, and a pullover design, and that they should be hand-washed and hung to dry. Like the gumball kit, an apron fits over your own clothes, which makes it one of the more forgiving choices late in pregnancy. It's also a ready-made Halloween pregnancy announcement if you haven't shared the news yet.

Check Maiteenly Preggo chef couples costume on AmazonAffiliate link (tag bestprod0fcf1-20). Hand wash, hang dry per listing.

Choosing by trimester

Where you are in pregnancy changes which costume makes sense more than any style preference does.

Comfort: what to plan for on the night

A costume that looks great in a photo can still be miserable at hour two. ACOG notes that the extra weight in front shifts your center of gravity during pregnancy, so you're less stable and more likely to lose your balance, and it advises avoiding standing still for long periods because blood can pool in your legs and feet. Halloween happens to combine both: walking on dark, uneven sidewalks and standing at a door handing out candy. A few habits make it easier.

• Wear flat, closed shoes with grip. Save any costume shoes for photos.
• Bring a small folding stool or set a chair by the front door if you're on candy duty.
• Keep a water bottle and a snack in a bag or pocket.
• Choose a costume you can unzip or slip off in under a minute. Layered bodysuits with back zippers are the hardest.
• Skip heavy headpieces and anything that pulls on your neck or presses on your belly.
• Plan a shorter trick-or-treat route, or join older kids for the first half and hand off to another adult.

Safety notes for pregnant trick-or-treaters

Fabric, fit, and flames

The CPSC's Halloween advice applies to adults too: choose costumes that fit well, look for flame-resistant fabrics such as nylon or polyester, and avoid billowing skirts, long capes, and baggy sleeves that can brush against a jack-o'-lantern. Use battery-operated lights instead of candles in your own decorations. When you're walking at night, add reflective tape to your costume or coat and carry a flashlight or glow stick so drivers can see you.

Makeup and face paint

FDA recommends testing new Halloween makeup on a small patch of skin, such as your arm, for a day or two before putting it on your face, and stopping if you see redness, swelling, a rash, or irritation. It also advises using only color additives that FDA has approved for the area you're applying them to, especially around the eyes. Skin can be more sensitive than usual during pregnancy, which is one more reason to do the patch test. If you have questions about specific products while pregnant, ask your clinician.

Colored and decorative contact lenses

FDA is direct about this one: decorative contact lenses, including cat-eye and zombie lenses, are medical devices that require an eye exam and a valid prescription, and buying them without one can lead to serious eye injuries. Don't buy them from a costume shop or a pop-up kiosk.

Common mistakes

• Ordering a fitted costume in your pre-pregnancy size. Check the listing's size chart against your measurements now.
• Waiting too long. Check the delivery date on the listing before you buy, especially in the last week of October.
• Choosing a bodysuit you can't get out of quickly.
• Wearing heels for the whole evening.
• Using makeup or lenses you haven't checked against FDA's guidance.

Related Mom's Magazine guides

Dressing the rest of the family? See best Halloween costumes for kids and best baby Halloween costumes for next year's first Halloween. For everyday maternity basics that outlast October, see best Amazon Essentials maternity clothes, and when the due date gets close, our hospital bag checklist.

Browse more maternity Halloween costumes on AmazonAffiliate search link (tag bestprod0fcf1-20).