Sue Radford posed for a sweet snap with her 22nd baby.

The matriarch of Britain’s biggest family celebrated four months since little Heidie was born.

She shared a picture with her 307,000 followers, writing: “Mummy and daughter pic. #LoveHer #Beautiful #FourMonthsOld.”

It’s likely that the photo was taken at Millie Radford’s baby shower.

Sue's 18-year-old daughter is currently pregnant with a little girl, who she has named Ophelia.

Eagle-eyed fans were quick to notice the presents in the background of the image, as well as a balloon that spells out the word “baby”.

Sue Radford posed with Heidie – at what could be Millie's baby shower

Sue’s post racked up 7,800 likes – and many left kind comments for the Radford family.

One responder asked: “Aw is this Millie's baby shower? Hope you have a great time.

“Not long for you all to wait now!”

Another said: “Awww this looks like Millie’s baby shower! Enjoy.”

A third gushed: “Sue you look amazing and Heidie has gone so big. Hope you have an amazing day.”

And a fourth added: “Lovely – Heidie is growing so fast. Precious memories.”

Sue and Noel Radford have 22 kids – and live with many of them in Morecambe, Lancashire

The Radford family shot to fame on 15 Kids and Counting, a Channel 4 documentary.

Sue and Noel Radford, who have 22 children, live in a former care home in Morecambe, Lancashire.

It boasts four storeys and ten bedrooms, which is just enough room to fit their brood.

They are currently living with 19 of their children – including pregnant 18-year-old Millie.

The other kids that live in the house are Chloe, 24; Jack, 22; Daniel, 20; Luke, 19; Katie, 17; James, 16; Ellie, 15; Aimee, 14; Josh, 12; Max, 11; Tillie, 10; Oscar, eight; Casper, seven; Hallie, four; Phoebe, three; Archie, two, Bonnie, one; and baby Heidie.

Meanwhile, their eldest sprogs Chris, 30, and Sophie 26, have freed up a bit of space at the house as they have flown the nest.