Olivia Wilde, who is expecting her first child with fiance Jason Sudeikis, believes that people act as if they do not know she's pregnant out of some well-intentioned sense of politeness.
The 'Her' star told 'The Tonight Show' host Jay Leno that the worst thing in the world is to congratulate a non-pregnant woman on her pregnancy, and people will go to great lengths to not mention it, Us Magazine reported.
The 29-year-old actress added that unless someone's watching you give birth, they don't want to make the wrong call.
