Olivia Wilde, Jason Sudeikis welcome their new baby boy

Olivia Wilde and Jason Sudeikis are now the parents of a baby boy, the new mom announced Wednesday afternoon via Twitter.

“Ladies and gentlemen, Otis Alexander Sudeikis has LEFT the building! (I’m the building),” the “House, M.D.” actress wrote, including a black-and-white closeup picture of herself cuddling the newborn.

Wow, it seems like only yesterday that we were hearing about how she considered her big belly a “badge of pride.” Probably because it was only yesterday.

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“I just thought, ‘Oh, I’m going to hide this forever. But I ended up getting kind of excited to show the bump, as a badge of pride,” the 30-year-old told Lucky magazine for its May cover story, adding, “Like, I’m a woman! Look at me making a human! I am a goddess!”

That little human made his way into the world a little bit early: Wilde’s due date, which she revealed in January on the Golden Globes red carpet, was May 4.

And if the 30-year-old hadn’t already made it clear that she and fiance Sudeikis, 38, weren’t about to rush to the altar to get hitched before their son was born, it’s a done deal now.

“I think of him as my husband anyway,” she told Lucky.

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It’s a first child for the actors, though their marriage will mark the second time around for both. Sudeikis was previously married to “Pitch Perfect” and “30 Rock” writer Kay Cannon, with their divorce final in 2010. Wilde, who’d eloped at age 18, finalized the breakup of her eight-year marriage to Tao Ruspoli, an Italian prince, in October 2011.

The new parents, who started dating in November 2011, got engaged in January 2013.

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