Actress Katherine Heigl is planning to quit acting in 2009 so she can start a huge family with new husband Josh Kelley. The couple - who married on December 23 - both want five or six children, and Heigl, 29, is itching to be a mother as soon as possible. The Knocked Up star says, "I'd like to start talking children seriously in the next year, but Josh feels more like two years, so we'll probably do a year and a half. I'm excited about having a big family. I'm talking five or six."