By Megan Riedlinger
2:29pm PDT, Sep 16, 2023
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Join us as we take a look back at the most stylish moms-to-be in memorable — for better or for worse — red carpet maternity looks, starting with this actress…
Sienna Miller attended the Vogue World event kicking off London Fashion Week in September 2023 wearing a two-piece Schiaparelli Haute Couture look that celebrated her growing baby bump.
The appearance came a few weeks after she confirmed she was pregnant with her second child.
The Golden Globe-nominated actress is expecting a baby with model-actor Oli Green, who will appear on season 6 of "The Crown" as the law student Kate Middleton dated before Prince William.
Sienna also has a daughter with actor ex Tom Sturridge.
Keep reading to see more of the best celebrity maternity style moments on the red carpet…
MORE: Follow Wonderwall on MSN for more fun celebrity & entertainment photo galleries and content
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"The Vampire Diaries" and "The Originals" actress Claire Holt revealed she was pregnant with her third child with husband Andrew Joblon when she walked the red carpet in an ethereal sleeveless Lanvin gown with a high neckline at the 2023 Cannes Film Festival premiere of "Killers of the Flower Moon" in France.
MORE: Stars who are currently expecting
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Jessie J looked red-hot at the 2023 BRIT Awards while pregnant with her first child (a boy!) with her boyfriend of about a year, professional basketball player Chanan Safir Colman. The pop star rocked a tulle Selezza coat slung off her shoulders over a belly-baring Brielle ensemble: a cropped long-sleeve top and matching leggings.
MORE: Celeb bodies after baby
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Look at that sparkle! Model and cookbook author Chrissy Teigen flaunted her growing baby bump at the 2002 Emmy Awards in a metallic Naeem Khan gown reminiscent of an abstract painting. The vibrant pops of pink, peach, purple and black made for a fun and eclectic red carpet moment. Her third child with husband John Legend, daughter Esti Maxine, arrived in early 2023.
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Michelle Williams chose a glamorous occasion to debut her third baby bump: the 2022 Cannes Film Festival. The star showed off her growing stomach in this black and white Chanel design with spaghetti straps while attending the premiere of her film "Showing Up." Her third child — and second with husband Thomas Kail — arrived a few months later.
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Iconic Victoria's Secret model Adriana Lima celebrated her growing baby bump — while expecting her third child and first with love Andre Lemmers — in a glamorous black gown with a belly cut-out at the 2022 Cannes Film Festival premiere of "Top Gun: Maverick." Son Cyan arrived three months later.
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Jennifer Lawrence showed off her baby bump in style — while pregnant with her first child, son Cy, with husband Cooke Maroney — in a dazzling Dior gown at the premiere of her movie "Don't Look Up" in late 2021. The golden frock featured delicate fringe detail and a semi-sheer cape for an overall ethereal vibe that matched the star's pregnancy glow.
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Making a pregnancy announcement on the red carpet requires a perfect fashion moment — and Blake Lively delivered in this department in May 2019 when she hit the red carpet for the premiere of husband Ryan Reynolds' film "Pokemon Detective Pikachu" in this sequined yellow gown by Retrofete. The spaghetti-strap dress, which included a matching sash fastened atop her growing belly, highlighted just how far along she was in her pregnancy with her third daughter, Betty.
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One of the most iconic maternity red carpet moments took place at the 2011 MTV Video Music Awards. Beyonce donned this one-shoulder fiery orange Lanvin gown that showed off her burgeoning baby bump when she was pregnant with daughter Blue Ivy with husband JAY-Z
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The floral Riccardo Tisci gown and gloves that Kim Kardashian West wore to the 2013 Met Gala provided a jaw-dropping maternity moment that became an instant meme. At the time, the reality star was pregnant with daughter North with then-partner Kanye West.
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One of the most iconic maternity red carpet moments took place at the 2008 Cannes Film Festival when Angelina Jolie arrived in this dreamy green Max Azria Atelier gown. The stunning frock had thin straps and delicate pleating that started at the empire waist — perfectly highlighting her baby bump. Angelina and then-love Brad Pitt welcomed twins Knox and Vivienne two months later.
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Gwyneth Paltrow attended the 2006 Golden Globes while pregnant with her second child, son Moses, with then-husband Chris Martin. She showed off her maternity style in this romantic cream-hued Balenciaga gown covered in lace, ruffles and pleating.
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We'll never forget Kerry Washington's memorable Brandon Maxwell maternity look at the 2016 Emmy Awards. The "Scandal" star was expecting daughter Isabelle with husband Nnamdi Asomugha when she arrived in this fitted black gown, which included an impossibly cool cape detail that cascaded from her back.
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Bumping along in Chanel! Kate Hudson rocked this silver Chanel Haute Couture ensemble comprised of embellished sheer fabric over a bandeau-style top and a knee-length skirt at the 2003 Venice Film. At the time, she was pregnant with her fist child, son Ryder, with then-husband Chris Robinson.
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Ciara's 2020 Vanity Fair Oscar Party dress proved you can still show skin while you're expecting! The singer donned this Ralph & Russo design comprised of a see-through crystal-embellished mesh fabric draped over a bustier bodysuit. She and husband Russell Wilson welcomed son Win a few months later.
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Did you know that Catherine Zeta-Jones was nine months pregnant when she won her Academy Award in 2003? Yep, the actress was 10 days away from welcoming daughter Carys with husband Michael Douglas when she donned this shimmering chocolate brown Versace gown featuring a sweetheart neckline, a cold-shoulder detail and a column-style skirt with a knee-high slit up the center.
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Olivia Wilde was expecting son Otis with then-partner Jason Sudeikis when she dressed her bump in emerald green Gucci at the 2014 Golden Globes. The long-sleeve gown was covered in sequins and featured a floor-length silhouette.
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Jennifer Lopez rocked a gorgeous red carpet look just days before giving birth to twins! Yep, the superstar donned this dark brown Gucci gown, which she belted above her bump, at a UNICEF event in 2008 a mere two weeks before welcoming Max and Emme with then-husband Marc Anthony.
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Jennifer Garner showed off her first baby bump — when she and Ben Affleck were expecting daughter Violet — at the 2005 Emmy Awards. That night, the star attended in this strapless black Badgley Mischka gown that featured a jeweled embellishment at the neckline and a fitted silhouette.
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Naomi Watts selected a pale yellow Escada number to dress her bump at the 2007 Academy Awards. Her silk off-the-shoulder frock featured a black satin sash detail that drew attention to her blooming shape while pregnant with her first child with then-love Liev Schreiber, son Sasha.
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It was a Versace maternity moment for Kate Hudson in 2011. The star attended the premiere of "Something Borrowed" in this lovely yellow gown that featured a halter-style neckline and a flowing pleated skirt with a diminutive train. She was expecting son Bingham with then-partner Matt Bellamy at the time.
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Another pastel yellow maternity-wear moment took place at the 2011 Grammys! This time it was Jewel's turn to show off her baby bump in the soft shade. She donned a one-shouldered Pamella Roland column-style selection while pregnant with son Kase with then-husband Ty Murray.
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Chrissy Teigen showed off her baby bump when she was pregnant with son Miles with husband John Legend at the 2018 Grammys. The model and cookbook author chose a sparkly silver Yanina Couture frock with dramatic draped sleeves, a shiny silver belt detail at the waist and a high center slit.
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When it came time for Cate Blanchett to dress her baby bump at the 2008 Oscars, she turned to Dries Van Noten. The stylish star selected this navy blue frock featuring a halter-style neckline, floral details down the skirt and a high-low hemline that showed off her pointy-toe silver pumps. She was expecting her third son, Ignatius with husband Andrew Upton, at the time.
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Kim Kardashian showed off her big baby bump in an all-white Valentino gown at the InStyle Awards back in 2015. Her frock featured a cape-style detail — which seems to be a popular celebrity maternity fashion element — in addition to its form-fitting silhouette. She gave birth to son Saint with then-husband Kanye West less than two months later.
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One of our all-time favorite celebrity maternity looks has to be the romantic Valentino Haute Couture gown Keira Knightley wore to the 2015 Academy Awards. The star arrived in this dreamy cream-hued sleeveless frock with floral and script embroidery across the top layer of ethereal tulle. She was pregnant with daughter Edie with husband James Righton at that time.
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One of our favorite looks ever on Blake Lively happened to be a maternity dress! The star stunned on the Cannes Film Festival red carpet in 2016 in this Atelier Versace number comprised of embellished electric blue fabric, one off-the-shoulder strap and a fitted silhouette with a thigh-high slit. The star was pregnant with her first child — daughter James with husband Ryan Reynolds — at the time.
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Amy Adams' top accessory during the 2010 Academy Awards was her baby bump! The actress wore a deep blue sleeveless dress with an empire waist designed by Alberta Ferretti for the big night. Daughter Aviana with long-term partner Darren Le Gallo arrived two months later.
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When Gwen Stefani wanted to have a major maternity moment at the 2006 Grammys, she rocked a design by her own label, L.A.M.B.! The music star donned a one-shouldered leopard-print gown with a skirt featuring a cool ombre effect. Son Kingston with then-husband Gavin Rossdale arrived just three months later.
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Heidi Klum donned a gorgeous ruby red Michael Kors gown at the 2006 Emmys. She was pregnant with son Johan Samuel with then-husband Seal when she wore this one-shoulder frock featuring Grecian-inspired draping and a thigh-high slit that helped show off the strappy metallic sandals she paired with the look.
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Alicia Keys showed off her baby bump in a show-stopping Givenchy design at the Keep A Child Alive ball in 2014. The off-the-shoulder number featured sparkly silver bordering the neckline that gave way to a beautiful black gown with an empire waist — the perfect silhouette to show off her pregnancy with son Genesis Dean with husband Swizz Beatz.
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Elsa Pataky donned a gorgeous green Elie Saab gown that featured beautiful beading and a deep-V neckline at the 2014 Academy Awards. At the time, she was expecting twins Sasha and Tristan with husband Chris Hemsworth.
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Though it wasn't exactly a red carpet, it was one of the most photographed events of the decade! Victoria Beckham was pregnant with daughter Harper Seven when she and husband David Beckham attended Prince William and Kate Middleton's 2011 royal wedding. For the occasion, she wore a navy blue shift dress, added a matching fascinator and braved super-high Christian Louboutin platform stilettos.
