Fight Club star Edward Norton is set to become a first-time dad - his fiancee Shauna Robertson is pregnant, according to a U.S. report.

The Forgetting Sarah Marshall producer is expecting and due to give birth "any day now," according to UsMagazine.com.

A source tells the publication, "Ed is really excited for fatherhood. He helped pick out a stroller for the baby!"

The couple reportedly got engaged in 2011 after six years of dating.