Washington, Dec 30 : Hollywood actress Chyler Leigh is expecting her third child with husband Nathan West.

The `Not Another Teen Movie' actress, who already has two children with actor/musician husband West, is all set to have another one.

"They are absolutely thrilled and looking forward to the new addition to their young family," Fox News quoted Leigh's rep, as telling People magazine.

Chyler Leigh is currently playing the role of Lexie, who is the half-sister of Ellen Pompeo's character Meredith in `Grey's Anatomy'.

However, according to People, Leigh's pregnancy will not be written into the storyline for "Grey's Anatomy." (ANI)