Big congratulations to actress Carey Mulligan and her hubby Marcus Mumford - who have had a baby! We're not sure if it's a 'son' as yet, but one can only assume there's a 50/50 chance it is. 

News of their impending parenthood came to light back in April, with a source now exclusively telling Us Weekly "The baby is healthy. They have been loving being parents and their friends and family are thrilled."

Presumably said birth happened a few weeks ago, as Carey has since made a red carpet appearances at the London Film Festival. Here she is at the premiere of Suffragette last night. 

Seemingly the 30-year-old actress and her 29-year-old husband were pen pals as kids, "before their friendship blossomed into romance in 2011."

They got hitched in April 2012 in Somerset.