This will be the first child for Portman, who turns 30 Thursday, and French-born choreographer Benjamin Millepied, 33. "One of the most exciting things about being pregnant is that I'm accepting the complete unknown. It's a complete mystery and miracle," Portman told reporters after winning the Best Actress trophy at the Academy Awards. "It's really just accepting that I have no idea, which is what all of us live every day."
Portman -- who has dressed her baby bump in designer duds ranging from Jason Wu to Viktor & Rolf -- won't know the sex of her baby until she gives birth this summer.
"People can say a lot of things and they have a 50 percent chance of being right," she's said. "I'm Jewish and I think in Judaism, there's a lot of superstition around not doing too much before the baby comes."