Reports about Warner's pregnancy emerged last month when she was spotted with a visible baby bump while strolling through London with her husband.
The actress covered her bump in casual Clerkenwell attire and coat. Dornan, 33, has reportedly now confirmed the pregnancy during an interview for People magazine's "Sexiest Man" issue, reported Aceshowbiz.
Dornan and Warner have been married for two-and-a half years and share a two-year-old daughter named Dulcie together.