Actress Natalie Portman gave birth to her son! Portman and her fiance Benjamin Millepied announced they were expecting back in December. This is their first child. The couple met on the set of Portman's movie 'Black Swan,' Millepied was the coreographer.

Portman won an Ocsar for Best Actress for her starring role as Nina in the film. The couple have no announced the baby's name yet.

Portman accepted her Oscar while noticeably pregnant, spurring much talk of her glamorous pregnancy style. Here are some photos.

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Natalie Portman
Award-winner Natalie Portman arrives at the 2011 Vanity Fair Oscar party. Reuters
Actress Natalie Portman holds her Oscar, which she won for best actress for her role in quotBlack Swanquot, after the name plate was engraved at the Governor039s Ball after the 83rd Academy Awards in Hollywood, California, February 27, 2011.
Actress Natalie Portman holds her Oscar, which she won for best actress for her role in "Black Swan", after the name plate was engraved at the Governor's Ball after the 83rd Academy Awards in Hollywood, California, February 27, 2011. Reuters
Natalie Portman R, best actress nominee for her role in quotBlack Swanquot, and her fiance, Benjamin Millepied arrive at the 83rd Academy Awards in Hollywood, California February 27, 2011.
Natalie Portman (R), best actress nominee for her role in "Black Swan", and her fiance, Benjamin Millepied arrive at the 83rd Academy Awards in Hollywood, California February 27, 2011. Reuters
Natalie Portman, best actress winner for her role in quotBlack Swanquot, poses backstage at the 83rd Academy Awards in Hollywood, California, February 27, 2011.
Natalie Portman, best actress winner for her role in "Black Swan", poses backstage at the 83rd Academy Awards in Hollywood, California, February 27, 2011. Reuters
Actress Natalie Portman, who is pregnant with her first child, takes the stage in the photo room after winning best actress for her role in 039Black Swan039 at the 17th annual Screen Actors Guild Awards in Los Angeles, California January 30, 2011.
Actress Natalie Portman, who is pregnant with her first child, takes the stage in the photo room after winning best actress for her role in 'Black Swan' at the 17th annual Screen Actors Guild Awards in Los Angeles, California January 30, 2011. Reuters
Actress Natalie Portman accepts the award for best female lead for her role in the film quotBlack Swanquot during the 2011 Film Independent Spirit Awards in Santa Monica, California, February 26, 2011.
Actress Natalie Portman accepts the award for best female lead for her role in the film "Black Swan" during the 2011 Film Independent Spirit Awards in Santa Monica, California, February 26, 2011. Reuters
Actress Natalie Portman L accepts the award for best actress for her role in 039Black Swan039 at the 16th Annual Critics039 Choice Movie Awards in Hollywood, California January 14, 2011.
Actress Natalie Portman (L) accepts the award for best actress for her role in 'Black Swan' at the 16th Annual Critics' Choice Movie Awards in Hollywood, California January 14, 2011. Reuters