Crash star Thandie and film writer and director Ol already have two daughters, 12-year-old Ripley and Nico, eight.
The actress' rep has now confirmed to Reveal that they are set to become parents again next year.
Yesterday (8 September), Thandie was pictured with a tiny baby bump while walking the red carpet with Ol at the 2013 Toronto International Film Festival.
She wore a form-fitting monochrome dress and was snapped arriving at the premiere of her new film Half Of A Yellow Sun.
Ol, meanwhile, wore a grey shirt, loose tie and a black suit to the glitzy event.
Congratulations, Thandie and Ol!
See who else is expecting a baby in our gallery below!
Copyright: Vimeo / Weiss Eubanks