Matt Damon and his fiancee Luciana Barroso are expecting their first child together.
Barroso, who Damon proposed to shortly before America's Labour Day holiday (September 5), is three months pregnant, according to US TV show Access Hollywood.
The child will be Damon's first - Barroso has a six-year-old daughter, Alexa, from a previous relationship.
The news comes just one week after Damon talked about his desire to be a strong father figure.
He said: "I have longed for (kids) in real life, anyway. I just have to learn how to be a disciplinarian. Now I'm good at winding kids up, but I'm not so good at chilling them out."