Olivia Wilde Pregnant: 'Rush' Actress Expecting First Child With Fiance Jason Sudeikis

And baby makes three for Olivia Wilde and Jason Sudeikis.

The 29-year-old "Rush" actress and Sudeikis are expecting their first child together, People magazine confirmed.

"They are incredibly happy," said a source close to both. "They're very excited to welcome a new member into their family."

The two met on the season finale of "Saturday Night Live" in 2011 and began dating six months later. They got engaged in January.

"I can't wait for children," Wilde said in the April issue of Marie Claire. "I'm open-minded about how many, but three, which I love, is like a little party. [Jason] is so good with kids. I've never before experienced looking at someone and thinking, 'That's who I want to raise a child with.'"

In July, Wilde gave credit to her hubby-to-be for teaching her some acting techniques. 

"His [acting] skill level is so high. I really have learned a lot from him, especially when it comes to being bold and taking risks as an actor within a role," she said. "Comedians are so great about trying things, like doing seven takes in seven different ways and really not being afraid to stumble.''

The 38-year-old comedian told Modern Luxury Manhattan, Wilde helped guide him to a healthier lifestyle.

"Being happy, and in love, for me, was the secret," Sudeikis said. "I feel like I returned home to myself as an individual through the process of falling in love with the sweetest woman I've ever known."

After the couple's pregnancy news broke and fans sent their congrats, Wilde tweeted:

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