Drew Barrymore Expecting Second Child

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Drew Barrymore and Will Kopelman

The actress is already a mother to a 13-month-old daughter with husband Will Kopelman.

Drew Barrymore is ready to be a mother -- again.

The actress is expecting her second child with her art-consultant husband Will Kopelman, her rep confirmed to E! News after a photo surfaced of Barrymore sporting a baby bump.

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Barrymore also attended the third annual LACMA Art + Film Gala on Saturday night wearing a loose-fitting caftan by Vivienne Westwood.

The couple welcomed daughter Olive just over a year ago, on Sept. 26, 2012. It's unclear when Barrymore is due.

The actress, 38, married Kopelman in June 2012 at her Montecito estate, which she sold last month for $6.35 million.

In an appearance on The Tonight Show in September, Barrymore told host Jay Leno she was ready for a second child.

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"I grew up as an only child, and although that really works for some people and for some parents that's the way they want to do it.… I want to be the Griswolds," she said, referring to the National Lampoon's Vacation films. "I want the kids in the back rolling their eyes at Mom and Dad. I want Rusty and Audrey, theme parks and the whole nine."

Barrymore, who recently created the Flower Cosmetics line, last appeared on the big screen in 2012's Big Miracle and has a recurring voice role on Fox's Family Guy. She reunites with her Wedding Singer and 50 First Dates co-star Adam Sandler in next year's The Familymoon.