Scarlett arriving for an appearance on New York's the Late Show with David Letterman in January this year

The actress has made no secret of her desire to have children in the past.

"I would like to have my own family, that would be nice," she told the Daily Mail late last year. "They say it's never the right time and I am sure that's true, but I think you have to plan it like anything else.

"At some point it is something I look forward to," she added. "I am fortunate in that I have had a long career - 20 years - that has been very diverse. So, you know, picking a time to plan a family feels like something that I could do and not feel as though I was missing out."

Johansson dated ad executive Nate Naylor for a year before confirmed her relationship with Dauriac. She has been linked in the past to Jack Antonoff, Josh Hartnett, Sean Penn and Benicio Del Toro.

She is one of the most sought-after talents in Hollywood, with a long list of credits to her name and a net worth of $55 million (£34 million).

Photos: Rex Features

Scarlett Johansson welcomes baby girl with fiancé Romain Dauriac