British Olympic gold medallist Jessica Ennis-Hill is a first-time mother after giving birth to a son.

The heptathlon star, who won gold at the 2012 Summer Olympics in London, gave birth to a little boy named Reggie, her first child with husband Andy Hill, on Thursday (17Jul14).

She shared the news in a post on her Twitter.com page on Friday (18Jul14), adding a picture of her new baby and writing, "Our beautiful baby boy Reggie Ennis-Hill was born yesterday. We couldn't be happier."