SHARE 1 1 1 COMMENTMORE

We've all oohed and aahed over Olivia Wilde tiny little baby bump this past week, and even though it's obvious that she's expecting, the actress says strangers go out of their way to make sure she's pregnant before congratulating her.

"That's the worst thing in the world -- when you congratulate a non-pregnant woman on her pregnancy," she said on The Tonight Show With Jay Leno earlier this week. "I find that people will go to such great lengths to not mention it."

She even joked that she's been offered some less-than-safe treats as a way to confirm that she's pregnant.

"Even when you are clearly -- like, I feel like I'm clearly pregnant -- people will be like, 'Hey, would you like a glass of whiskey? Would you like to get on this roller coaster?'" she joked. "And I go, 'Oh, well, I'm actually pregnant.' And they go, 'What?!' Unless someone's watching you give birth, I don't think they want to make the wrong call."

Wilde and fiancé Jason Sudeikis are expecting their first child next year.