Glamorous Celebrity Maternity Halloween Costume Ideas for Moms-to-Be

Updated October 27, 2025 by Jan of Unique Baby Gear Ideas

🌟 Glamorous Celebrity Maternity Halloween Costume Ideas for Moms-to-Be

This Halloween, channel your inner star with these celebrity maternity Halloween costume ideas designed to celebrate both style and motherhood. From classic Hollywood icons like Marilyn Monroe to modern-day glam with a playful twist, these looks prove that bump-friendly can still mean red-carpet-ready. Whether you’re craving sparkle, nostalgia, or a touch of drama, each of these celebrity-inspired maternity Halloween costumes blends comfort, creativity, and pure confidence — perfect for moms who don't mind their pregnancy being put in the spotlight for a night filled with magic and fun.

Expecting during spooky season? You’re in the sweet spot for pregnant Halloween costume ideas that celebrate your bump. Below you’ll find a curated mix of DIY maternity Halloween costumes and polished store-ready looks—everything cute, funny, comfortable, and perfectly bump-friendly for joyful photos and easy wear.

These timeless looks aren’t just for Halloween night — they’re picture-perfect for a glamorous fall maternity photo shoot inspired by your favorite celebrity styles.

✨ Featured Celebrity Maternity Halloween Costume Ideas

Whether you’ve always dreamed of twirling in Marilyn’s iconic white dress, channeling Cruella’s mischievous glamour, or floating through Halloween night like a pregnant beauty queen — these celebrity maternity costume ideas make it effortless to look and feel amazing. Each look below includes simple styling tips, key accessories, and comfort tweaks for moms-to-be, so you can enjoy your night out (or in) enjoying our maternity Halloween costume ideas designed to celebrate both style and motherhood.

🩷 Celebrity Maternity Halloween Costume Ideas (DIY, Glamour, and Hollywood-Inspired Looks for Moms-to-Be)

Ever dreamed of walking a red carpet with your baby bump? These celebrity maternity Halloween costume ideas bring the star power straight to you — no stylist required. Inspired by iconic Hollywood looks and pop-culture favorites, each idea highlights your beautiful bump in a fun, glamorous, and comfortable way. Whether you love sparkle, sass, or humor, these pregnant celebrity Halloween costumes are designed to make expecting moms shine.

👑 1.

Pregnant Beauty Queen (Miss Bump-to-Be)

Shop this maternity Halloween look on Amazon

Channel your inner pageant winner with a maternity gown, glittering tiara, and a sash reading “Miss Bump-to-Be.” Add a bouquet of roses for that crowning-moment finish. This Hollywood-inspired maternity costume idea is pure elegance and comfort — perfect for parties or maternity photos. Choose soft fabrics that flow around your bump and metallic accents that sparkle under evening light. If you love these elegant silhouettes, you’ll adore our maternity gown ideas for photo shoots.

💀 2.

Cruella de Vil and Baby Toto Celebrity Maternity Halloween Costume Ideas

Shop our favorites to get this look on Amazon Fierce, fabulous, and unforgettable — this DIY celebrity maternity costume look gives Cruella’s signature drama a bump-friendly makeover. Start with a fitted black maternity dress, red gloves, and a fluffy white boa speckled like Dalmatian fur. Add Cruella’s signature two-tone wig and a long cigarette holder for flair. The best part? Carry your baby dressed as a tiny puppy sidekick — the cutest “Toto” ever.

🌟 3.

How to Create a Marilyn Monroe Maternity Costume

Shop our list of favorites to get this look on Amazon

No one defines vintage glam like Marilyn. Recreate her iconic look with a flowy white halter dress adapted for maternity wear, red lipstick, and retro curls. Capture the playful skirt-swish moment (without the subway grate, of course!) for stunning maternity photos. This pregnant celebrity Halloween costume is all about confidence, curves, and classic Hollywood sparkle.

4.

I Dream of Jeannie” Maternity Costume

Shop our list of favorites to get this look on Amazon

Float into Halloween night with this nostalgic TV-star look. Pair a sheer pink maternity harem outfit with a jeweled headpiece, sparkly veil, and soft belly drape. Style your hair in a high ponytail with Jeannie’s signature charm. This Hollywood maternity costume idea is easy to DIY with soft fabrics, shimmer, and a little imagination.

5.

Dorothy & Baby Toto from The Wizard of Oz

Shop our list of favorites to get this look on Amazon

There’s no place like home — especially when you’re expecting! For this Hollywood-inspired maternity costume idea, wear a blue gingham maternity dress, white blouse, and ruby slippers. Add a wicker basket with your baby dressed as a little Toto for instant smiles. This cozy, wholesome costume captures timeless charm while celebrating motherhood in the sweetest way.

Quick Styling Tips

• Focus on outfits made with lightweight, breathable fabrics for comfort.
• Use stretch panels or empire-waist designs to flatter your bump.
• Coordinate accessories (wig, shoes, props) to complete the story and don't forget to shop at consignment stores, garage sales and secondhand stores.
• Golden-hour photos bring out that red-carpet glow.

Inspiration That Shines

Each of these celebrity maternity Halloween costume ideas blends glamour with comfort — reminding every mom-to-be that confidence is the best accessory. Whether you’re channeling Cruella’s drama, Marilyn’s elegance, or Jeannie’s sparkle, your costume tells a story that’s beautifully yours.

Pregnant moms can still enjoy Halloween in style — just be sure to stay cool, hydrated, and balanced. The March of Dimes shares more about how to stay comfortable during pregnancy.

And when your little one arrives, don’t miss our adorable baby Halloween costume ideas for next year’s family fun. Please stop by Unique Baby Gear Ideas to share photos of your costume after Halloween.

Safety & Compliance Reminder

Always confirm that your crib and replacement parts meet current Consumer Product Safety Commission (CPSC) standards. Drop-side cribs were banned for safety reasons in 2011, and older models may not comply with today’s hardware and spacing requirements. Learn more about the rules and what’s safe to reuse in our drop-side crib safety guide.

About the Author

Hi, I’m Jan — the creator of Unique Baby Gear Ideas. I love helping expecting parents discover nursery décor inspiration and creative photo shoot ideas that make every stage of pregnancy feel beautiful. The suggestions I share here come from years of hands-on experience styling nurseries, reviewing maternity gowns, and learning what makes each photo session shine.

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