Sue and Noel Radford have revealed that their 18th child is a girl.
Last month, the parents of Britain's biggest family revealed they were going to become a mum and dad again.
And in a post for the Fundamentally Children website on New Year's Day, they said: "Well we can finally announce that we are going to be the proud parents of another daughter.
"It seems such a long time since we have been able to say that, in fact it's over four years.
"Now that we know we are having a girl it will mean we have 10 boys and eight girls. The girls are slowly catching up.
"She has a name with meaning that we will share with you when she is born in June."
Sue also shared scan photos of her new baby.
Alongside one, she wrote the caption: "This is our beautiful, precious, tiny little daughter."
Last year, Sue lost her son Alfie 21 weeks into her pregnancy. Alongside a high definition image of his baby sister, she poignantly wrote: "I think she had just been sucking her thumb, bless her. If you look closely at this picture you will be able to see a little face watching over her to make sure she is OK, she has the best guardian angel watching over her – her big brother Alfie."
And alongside a 3D picture, Sue added: "Not sure if she is waving to us here or if she is sucking her thumb."
Sue, 39, and Noel, 43, are already parents to Chris, 25, Sophie, 21, Chloe, 19, Jack, 17, Daniel, 15, Luke, 14, Millie, 13, Katie, 12, James, 11, Ellie, nine, Aimee, eight, Josh, seven, Max, six, Tillie, four, Oscar, three and two-year-old Caspar.
Last month, Sue said on her Facebook page: "We are really, really excited. It is the best news I could hope for after a difficult year. It feels like a blessing."