Most Stylish Celeb Baby Bump Red Carpet Debuts in 2017

Each time a celeb announces her pregnancy, the world goes on bump watch. And we're always dying to know what she'll be wearing when she debuts her belly for the first time — especially on the red carpet. Click to see the best bump debuts of 2017.

Laura Prepon: The Orange Is the New Black star made a low-key belly debut at the Sundance Festival in Utah among swirling rumors of her pregnancy on January 22. The actress posed with her fiancé, Hell or High Water actor Ben Foster, on the red carpet in a snug black coat, slim blue jeans, and a white beanie. The private couple welcomed their daughter earlier this summer. (Photo via Thomas Concordia)

Lauren Conrad: When The Hills alum announced her pregnancy in January, we knew her maternity style was going to be on-point. The fashion designer showed off her pregnant belly in a white off-the-shoulder frock by Rebecca Minkoff on February 4. She gave birth to son Liam James in early July. (Photo via Rachel Murray)

Rosie Huntington-Whitely: The Mad Max: Fury Road actress announced her pregnancy via Instagram on February 9. Just six days later, Huntington-Whitely launched her collaboration with denim brand Paige in a slim-fitting, all-black look from the line. She and fiancé Jason Statham welcomed son Jack Oscar on June 24. (Photo via Charley Gallay)

Hannah Jeter: Three days after announcing her pregnancy in a sweet blog post on The Players Tribune titled "The Derek Jeter I Know", the model attended the Sports Illustrated Swimsuit edition launch on February 16 in a sequined, asymmetrical Fabiana Milazzo dress. The couple welcomed daughter Bella Raine on August 17. (Photo via Jim Spellman/Getty)

Amal Clooney: The human rights lawyer's bump made its official debut at the César Awards on February 24 in a white and gray ombre feathered Atelier Versace gown. The British-Lebanese barrister and her husband George welcomed their twins Ella and Alexander on June 6. (Photo via Thomas Samson/Stringer)

Tamsin Egerton: The stunning blonde and her longtime partner Josh Hartnett surprised everyone with their pregnancy reveal ON the red carpet of the Vanity Fair Oscar's Afterparty. Egerton showed off her figure in an elegant black bodycon number. (Photo via Pascal Le Segretain)

Serena Williams: After accidentally announcing her pregnancy to the world on Snapchat, Williams officially showed off her bump on the Met Gala red carpet. The tennis champ wore a stunning emerald green halter gown by Atelier Versace. (Photo via George Pimental)

Julia Stiles: The 36-year-old actress got engaged to camera assistant Preston J. Cook in December last year and announced her pregnancy on June 12. The next day, Stiles wore a Yumi Kim maxi to debut her bump at the London launch of her new 10-part miniseries Riviera. (Photo via Karwai Tang/Wireimage)

Nicky Hilton: The hotel heiress and husband James Rothschild announced they were expecting their second child on July 7, but Hilton's baby bump debut actually happened two days prior at the Valentino AW 17 Couture Fashion Show in Paris. The mom-to-be wore a fabulous lavender pink minidress and cape resplendent with dimensional flowers. The designer also created her royalty-worthy wedding gown back in 2015. (Photo via Mac Piasecki)

Mindy Kaling: After news of her pregnancy surfaced, The Mindy Project star attended the TCA red carpet on July 27 wearing a fitted navy blue Chiara Boni La Petite Robe frock that stayed true to her pre-maternity style. (Photo via Jonathan Leibson)