Well, this is different: A source told People that Olivia Wilde and fiance Jason Sudeikis are expecting a baby, and rather than play a guessing game for weeks, reps for the couple quickly confirmed the news. Wilde, 29, and Sudeikis, 38, got engaged in January and this will be their first child. "They are incredibly happy," the source says. "They’re very excited to welcome a new member into their family." Wilde reacted to the congratulations she's receiving on Twitter: "WOW. You guys are awesome. So kind. Thank you thank you thank you! PS. Babies eat mostly salsa right?"