Nicole Richie confirms she is Pregnant

NEW YORK - Nicole Richie is talking about her pregnancy and the four-day jail sentence she received after her guilty plea to driving under the influence.

After months of rumors, Richie tells ABC News' Diane Sawyer for an interview to air this week that she is almost four months' pregnant and that her boyfriend, Good Charlotte frontman Joel Madden, is the father.

"Yes I am. We are," she tells ABC, which issued a news release about the interview.

In the latest issue of OK! magazine, on newsstands Wednesday, Richie says she is feeling "healthy and happy" and her life "is clearly going to slow down."