The Radford family suffered heartbreak last year after Sue lost what would have been her 17th baby.
The mum and dad-to-be Noel said they were “devastated beyond words” when a 12 week scan revealed the infant had died, just days after they announced they were expecting again.
But in a post on her Facebook page this morning, with a picture of their latest baby scan, Sue said: “I’ve been carrying a little secret look who’s cooking.”
On the family’s blog, she added: “We are so thrilled to announce the wonderful news that we will be welcoming a new little addition to our family baby number 17 is due in November and we couldn’t be happier.
“We went for our scan on Tuesday and he/she was giving us a wave to say hey mummy and daddy I’m fine.
“It doesn’t matter how many scans you have or how many children you have seeing a new little miracle always blows your mind we are so in love with this little one already.”
They have since had Casper, but also have Chris, 24, Sophie, 19, Chloe, 18, Jack, 16, Daniel, 14, Luke, 12, Millie, 12, Katie, 10, James, nine, Ellie, eight, Aimee, seven, Josh, five, Max, four, Tillie, three, and Oscar two.
But despite the huge cost of feeding and clothing their huge family, the Radfords have refused to claim benefits.