So much for that lithe "Black Swan" ballerina body - Natalie Portman is pregnant!

A rep for the 29-year-old Golden Globe nominee confirms to CNN that Portman and choreographer Benjamin Millepied are engaged and expecting their first child together.

French-born dancer Millepied, 33, has performed with the New York City Ballet and was the choreographer for Portman's critically acclaimed thriller "Black Swan." The couple were first romantically linked last New Year's Eve, when they attended a party together in New York City.

Portman has not yet revealed the baby's due date or when the wedding will take place. Stay tuned!