AceShowbiz -

Julia Roberts is not pregnant. The Oscar-winning actress denied speculations saying that she is expecting her fourth child as she stopped by "Late Show With David Letterman". In a Thursday, December 12 episode, the show's host David Letterman asked if Roberts planned to have an addition to her family.

"Have you thought about adding more to the group?" he asked. The actress answered quickly, "Oh, sure." He asked again, "Any chance?" and she replied, "No." Roberts and her husband Daniel Moder are parents to 9-year-old Hazel and Phinnaeus and 6-year-old Henry.

Speculations of her pregnancy emerged earlier this week after she was photographed wearing a loose sweater. The clothing style and the photo's angle apparently make her look like being pregnant.

In addition to pregnancy rumor, the "August: Osage County" star talked about her children and their homework. "God, I hate homework. I hated it when I had to do it and now I hate it when they have to do it. When they come home from school, I want them back," she said, as quoted by Los Angeles Times.

The actress, who received an Academy Award for Best Actress for her role in "Erin Brockovich", revealed that her children did not know how famous she was. "They know I'm their mother and they know that I work in show business, as does their father," she explained, adding that the children had not watched her movies.