Bride by Accident by Marion Lennox

Dr Devlin O’Halloran never knew his brother had married. Now his widow, seven months pregnant and stranded in Australia, seems determined to turn Dev’s life upside down. He’s intrigued by this beautiful young doctor, but Devlin doesn’t believe in happy endings anymore, especially under these circumstances. A future for them seems impossible, ridiculous, improbable. Except, against all the odds, lovely, vibrant Emma is bringing the joy back into his world...