Jenna Elfman

Jenna Elfman, who plays a pregnant woman on her new CBS series Accidentally on Purpose, announced on Wednesday that she is expecting her second child.

"I have a baby in my tummy, but a real one, not just for my TV show," Elfman told Julie Chen on The Early Show

Check out our Fall TV Preview section to get more details on Elfman's new series

Elfman's character in Purpose is unexpectedly impregnated by a younger man. "My character is pregnant the whole first season, so I said it's a good time to have another baby because we won't have to hide it," said Elfman. Her co-star, Ashley Jensen, is also pregnant in real life, but the producers are hiding her pregnancy on the show.

Elfman and her husband, actor Bodhi Elfman, have a 2-year-old son named Story Elias.