Hayden Panettiere is pregnant.

The 'Nashville' actress and her fiance, boxer Wladimir Klitschko, are reportedly expecting their first child together, it has been claimed.

A source told the new issue of Us Weekly magazine: ''Hayden is totally pregnant!''

The 24-year-old actress - who got engaged to the 36-year-old athlete last year after a three-year on/off romance - previously admitted she was keen to start a family and felt like she was ''born'' to be a mother.

She has said: ''I've lived a very big life, and I don't feel my age, and I feel like I was born to be a mother. Sometimes people speak about [having kids] like, 'Your life ends - you're never going to be able to do anything again!' And I'm like, 'What are you talking about?'

''Motherhood is the most beautiful, exciting thing, and there's nothing that I feel like I can't accomplish while having children in my life.''

And the former 'Heroes' star has even speculated on what her future children would look like.

She previously joked: ''He's got bowlegs and I've got knocked knees, so they're going to have straight legs. And they'll be normal height.''