Credit: Jeff Kravitz/FilmMagic

Baby bump’s first Oscars!

First time mom-to-be Natalie Portman won rave reviews for her performance in Black Swan -- and how she's dressed her ever-expanding belly as the awards season marches on.

How will the pregnant star, 29, dress for the biggest awards fest of all, in which she's a frontrunner in the Best Actress category?

"Yeah, well it's certainly all about leaving space for growth," admitted Portman of her dress choice at Monday's Oscar nominee luncheon at the Beverly Hilton. Engaged to her baby's dad, dancer-choreographer Benjamin Millepied, the actress has said she's due this summer.

At Monday's Oscar luncheon, Portman wanted to focus on her acting versus her fashion. "It is always surprising also that that's become the conversation instead of the movies now unfortunately," she told

Speaking of her Best Actress nominated role in Black Swan, Portman said she was drawn particularly to dance. "I've always thought it was such a compelling expression--through movement not through words."