Natalie Portman: Pregnant & Engaged!

Natalie Portman is pregnant with her first child and engaged to choreographer Benjamin Millepied, her rep confirms to JustJared.com.

Benjamin, 33, and Natalie, 29, met during the production of the Darren Aronofsky ballet thriller Black Swan. Nat‘s performance received nominations for a Golden Globe and Screen Actors Guild Award.

Nat and Ashton Kutcher‘s romantic comedy, No Strings Attached, opens January 21, 2011.

Congrats Nat and Ben! People first reported the happy news.

UPDATE: Nat tells EW, “I have always kept my private life private but I will say that I am indescribably happy and feel very grateful to have this experience.”