The 33-year-old actor confirmed through a representative that he and wife Sarah Roemer are expecting their first child together.
‘Chad and Sarah are extremely excited, and enjoying their life together’ said the rep.
The couple, who have been together since last year, married in secret this month - announcing their double joy as they discovered Sarah is pregnant.
This is Chad’s second marriage - he was previously married to his One Tree Hill Co-star Sophia Bush between 2005 and 2006, but they quickly divorced amid cheating allegations.
Sophia, who played Brooke David is the long running series, said of their union: ‘We were two stupid kids who had no business being in a relationship in the first place.’
He also had a failed engagement to One Tree Hill extra Kenzie Dalton, and was linked to Left Behind co-star Nicky Whelan until May 2014.
Meanwhile Roemer, who made her name in films such as Disturbia and The Grudge 2, has not been married previously.