Kirsten Dunst reveals she's pregnant with her first child

Kirsten Dunst and fiancé Jesse Plemons are expecting their first child together.

Rather than taking to social media to announce the happy news like many other celebrities do, the actress took part in a ethereal photoshoot for a designer fashion brand.

In the campaign images for Rodarte's Fall 2018 look book, Kristen tenderly cradles her blossoming baby bump while wearing a beautiful pinky-red maxi dress adorned with flowers.

The blonde's hair falls to her shoulders in natural-looking waves and she completes the look with a posy of pink blooms in her hair.

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Rodarte shared the shot of the mum-to-be on their Instagram page and it proved to be very popular among followers.

Many rushed to leave kind words for Kirsten to read.

'Congratulations!! Beautiful @kirstendunst and lovely dress!! 😍,' one gushed.

Another added: 'Too too sweet. I'm so happy for the divine @kirstendunst, she's going to make a wonderful mommy! 💖.'

Although Kirsten is yet to comment, rumours that she and Jesse had decided to start a family together have been circulating since December.

It's thought that Jesse asked for the 35-year-old's hand in marriage early last year, and she happily discussed the moment he got down on one knee during a TV interview in June 2017.

'I was a little sick when [he proposed], which was funny,' the mum-to-be told Jimmy Fallon while appearing on his talk show.

'But that's good. Sickness and in health, you know - I was in sweats.'

The duo met while working on season two of the popular FX show Fargo, which also stars British actor Martin Freeman. In the programme, Kirsten and Jesse play married high school sweethearts Peggy and Ed.

Kristen's 29-year-old future husband Jesse is also known for portraying Todd Alquist in Breaking Bad.