Olivia Wilde and her fiancé, Jason Sudeikis, welcomed their first child, a baby boy, and the “Her” actress soon took to Twitter to share the news, and a photo, on Wednesday.

The actress announced that the baby has been named Otis Alexander Sudeikis. "Ladies and gentlemen, Otis Alexander Sudeikis has LEFT the building! (I'm the building)," she wrote in the tweet with a black-and white photo.

Wilde and Sudeikis, a former Saturday Night Live member who has appeared in films “Horrible Bosses” and “The Campaign,” began dating in 2011 and got engaged in January 2013. Wilde announced her pregnancy in October 2013 and since then had been sharing details about her experience.

The 30-year-old actress revealed the baby's sex when she was attending the Golden Globes Awards, referring to her unborn baby as "he." She hinted at her due date by telling Ryan Seacrest: "May the fourth be with you." She also told People magazine at the awards show: “He was kicking the whole time, going, 'Where are we?!'”

Earlier this month, in an interview with Lucky magazine, Wilde said that she viewed her baby bump as "a badge of pride," but had initially wanted to hide her growing belly.

"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, like, 'I'm a woman! Look at me making a human! I am a goddess!'” she reportedly said. She also previously told Marie Claire magazine in an interview that she "can't wait for children" and would be open to having three kids.