Olivia Wilde Pregnancy Details Revealed: Find Out Her Due Date And The Baby's Gender

Olivia Wilde arrived to the Golden Globe Awards last night in a form-fitting green gown which put her baby bump on full display. After announcing her pregnancy news back in October, Olivia has been pretty secretive when it comes to her baby bump, but on Sunday, she let go of her inhibitions and showed her bump with pride. Also on the red carpet, Olivia discussed the details of her pregnancy, including her due date and baby's gender.

After confirming to PEOPLE Magazine that she and Jason were expecting a baby boy, Olivia revealed that her unborn son was quite active on the way to the Globes. “He was kicking the whole time, going, ‘Where are we?!’” Olivia explained.

Although she had previously told the magazine that she was due to give birth “at the end of April,” last night, she told a different story, joking with Ryan Seacrest when asked about the specific date.

“May the fourth be with you,” Olivia, who is an avid Star Wars fan, said, hinting that May 4 was her actual due date.

As for her form-fitting dress at last night's event, Olivia explained, “Until about a week ago, I just looked fat! I wanted to be like, ‘I’m not fat, I’m pregnant!’”

After Olivia and Jason's baby news hit the web, a source told PEOPLE, "They are incredibly happy. They're very excited to welcome a new member into their family."

In March of 2013, Olivia expressed her interest in having kids with her fiancé, telling Marie Claire, "He's so good with kids. I'm open-minded about how many, but three is like a little party."