Olivia Wilde and Jason Sudeikis are expecting a baby together.
The Rush actress and the We're The Millers funnyman - who have been dating for around two years - will apparently welcome their first child together next year.
Their representatives confirmed to People that Olivia, 29, is pregnant.
A source said she and Jason, 38, are "incredibly happy", adding: "They're very excited to welcome a new member into their family."
Olivia and Jason met in May 2011 during the season finale of US sketch show Saturday Night Live and got engaged in January 2013.
Last month Olivia joked that the couple were too busy to tie the knot.
"I think being engaged is really fun and I am in no rush," said the star. "I think it's really wonderful, I feel really lucky and happy. We're both really blessed to be very busy right now, so as actors, that's the dream - to be too busy to get married. That's fantastic."