'The Hills' Star Whitney Port Expecting Her 1st Child

She announced the news on her website.

— -- This "Hills" star is growing up! Whitney Port is expecting her first child with husband Tim Rosenman.

The former reality-TV star announced the news on her website with a post titled, "WE'RE PREGNANT!!!!!!!!"

"When two people love each other so much and the love becomes too great to fit inside both people, it spills over into a THIRD person," Port, 31, began. "This is how I am going to explain where babies come from to the little baby that is now growing inside my belly because Timmy and I are PREGNANT!"

She told her fans that she'll "be posting some videos and pictures along the way, so you guys can be a part of everything."

"I can’t wait to be a Mom, but the fact that there is another person inside there is seriously crazy!" Port concluded.

Port and her husband, Rosenman, have been married for more than a year.