Carey Mulligan has confirmed she's given birth to a girl.

The 30-year-old actress - whose pregnancy was announced in April - has revealed she and her husband Marcus Mumford welcomed a little daughter into the world three weeks ago after speculation about their new bundle of joy's arrival began to surface at the end of last week.

She said on 'The Graham Norton Show': ''It's a girl.''

The British star made her first public appearance since giving birth at the BFI London Film Festival last Wednesday (07.10.15) to promote her new film 'Suffragette' with co-star Meryl Streep, director Sarah Gavron, screenwriter Abi Morgan and producers Alison Owen and Faye Ward.

Though she didn't comment on changes in her personal life, the private star spoke of how she feels her new film - about the women's suffrage movement of the late 19th and early 20th century - feels relevant to modern society.

She said during the press conference: ''What I love about this film is it didn't feel like a documentary about a time; it felt like a film about today.

''It is a film to mark the achievements of what these women did and what they gave us but also to highlight where we are in the world. We still live in a society that is sexist and that goes throughout history.''