natalie-portman-preggo.jpgGetty Images for Vanity Fair

Natalie Portman and hubby Benjamin Millepied didn't attend the Oscars this year, but they certainly didn't go unnoticed at the Vanity Fair Oscar Party at Sunset Tower on Sunday evening.

Natalie looked incredible in Dior (and have you seen her Miss Dior Cheri commercial?), but the loose fit of the dress has sparked rumors that she might be pregnant with the couple's second child.

Natalie and Benjamin welcomed son Aleph Portman-Millepied in June of 2011, and they got married last August in Big Sur. It was previously announced that the family will be moving to Paris as Benjamin has been named as the new director of the Paris Opera Ballet.

Natalie is currently prepping for her role in Jane Got a Gun and she's rumored to be starring in In the Garden of Beasts, but she doesn't have any other film roles lined up after that...