Julie Chen announces her pregnancy on The Early Show. (VIDEO)

CBS personality Julie Chen is expecting her first child.

The Big Brother hostess, 34, made the announcement that she is pregnant during the first hour of The Early Show Tuesday morning.

“So it wasn’t a big Sunday at the buffet table,” She says. “I’m starting to show now! And my due date is Oct. 4. So, fingers crossed, and … I’m not taking maternity leave from ‘Big Brother.’”

Julie has been married to husband Les Moonves, 54, since 2004. The CBS Corporation President and CEO has three children from a previous marriage.