Celebrities who confirmed they were pregnant on Instagram

While some pregnant stars prefer to hide their bumps for as long as possible, others can’t wait to share their baby news with the world. More and more often, we’re seeing celebrities take to Instagram to announce that they’re expecting (they can’t all be Beyoncé at the 2011 AMAs!).

Justin Timberlake and Jessica Biel may have been keeping mum on those pregnancy reports, but the singer finally confirmed on Saturday that he is set to become a first-time dad by sharing a sweet photo of himself and his pregnant wife on the social networking site.

CLICK ON THE IMAGE FOR THE GALLERY

Planting a tender kiss on Jessica's growing baby bump, Justin – who turned 34 last month – couldn't contain his excitement as he posed for the touching picture.

"Thank you EVERYONE for the Bday wishes!" he eagerly wrote to his seven million followers. "This year, I'm getting the GREATEST GIFT EVER. CAN'T WAIT."

Stars like Paulina Gretzky, Coco Rocha and Blake Lively have announced that they, too, had a bun in the oven by snapping a photo of their growing tummies and posting the image on Instagram.

Other celebrities got creative with their baby news, with Stacy Kiebler posting a literal photo of a bun in an oven and Carrie Underwood sharing a picture of her dog in a sweater that reads, “I’m going to be a big brother.”

Meanwhile, Victoria’s Secret angel Doutzen Kroes bared it all for her big announcement.

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