Bare Baby Bump! Audrina Patridge Exposes Her Belly In A Bikini

"It started with me not feeling too well — I didn’t feel sick, but I definitely knew something was off between my mood swings and lack of energy. So, I took the test and TA-DA!" she wrote on her blog Dec. 18.

"I called Corey upstairs to make sure I wasn’t just seeing things and, well, let’s just say that he had a permanent smile glued to his face for the rest of the night!" she gushed.

"The difficult thing was that we were going to a dinner party, and I knew I had to keep it a secret, so I told everyone I was on a detox cleanse to cover my lack of alcohol consumption," she continued. "With the combination of my poor lying skills and Corey’s perma-smile, we were given ‘the look’ over and over again by our friends and family, so it’s safe to say the secret was not a secret much longer!"

The couple also shared their news on social media via a Clearblue test ad.

Good thing Audrina lathered up in the hot sun!

What do you think of the former The Hills star's bump? Tweet us what you think!