Former The O.C. star Kelly Rowan is expecting a baby with her billionaire fiancé, David Thomson.

The tot will be 42-year-old Rowan's first, while the Canadian businessman has four other children from previous relationships, including one with his second wife, who he left for the actress while she was pregnant.

The couple has been engaged since June, reports the Canadian newspaper, the National Post.

-More Kelly Rowan Pictures

(This news article provided by World Entertainment News Network)