Audrina Patridge announces pregnancy

"Hills" alum Audrina Patridge got a precious gift this Christmas: The TV personality announced on Friday that she is pregnant.

Patridge actually called it a gift for her fiancé, Corey Bohan.

"I finally figured out what to get Corey for Christmas!" she wrote on Instagram, along with a photo of herself holding up a pregnancy test. "#babyontheway#ClearblueConfirmed #ad (blog post with all the details will be up today, couldn't wait to share the news with you all:)! Xoxo."

Patridge wrote on her blog that she first had an inkling she was pregnant when she started feeling out of sorts.

"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," she said. "So, I took the test and TA-DA! I couldn't even believe my eyes. 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!"

Patridge and Bohan got engaged in November; the two have been together for seven years.

The TV personality added that she does not know yet whether the baby is a boy or girl, but would be overjoyed either way. She also said that she is not experiencing any morning sickness, just general fatigue.

Patridge isn't the only "Hills" star to have a big year; co-star Whitney Port tied the knot in November.

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• Pregnancy