The footage showed Millie attending an ultrasound appointment before the pair return home to surprise their three youngsters with the scan images.

Children Ophelia, five, Chester, four, and three-year-old Elodie were filmed sitting on a bed with their eyes shut as their parents handed each of them a sonogram picture.

In her Instagram caption, Millie wrote: “We thought our hands were full turns out they weren’t full enough! Baby #4 coming soon.”

The clip concludes with the ultrasound photographs displayed alongside a cream babygrow and matching hat.

Followers quickly flooded the post with congratulatory messages, with many drawing comparisons between Millie and her mother Sue, who famously gave birth to 22 children.

One fan commented: “Congrats you’ll soon be catching up with your mum.”

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Another wrote: “Omgg buzzing for you guys,” while a third added: “Massive congratulations to all of you on baby number 4 x.”Several of Millie’s siblings also expressed their excitement at the news.

Sister Katie Radford commented: “So so excited for you both, congratulations.”

Aimee Radford wrote: “Congratulations Millie, I can’t wait to be an auntie again,” to which Millie responded: “Thank you Aimee, can’t wait for you to meet baby xx.”

Tillie Radford also offered her well wishes, writing: “Congratulations Millie I can’t wait to meet them xx.”

The pregnancy announcement follows a turbulent period for the couple, who temporarily split during 2025 before deciding to reconcile.

Harley addressed speculation on Instagram that their separation had been fabricated for publicity purposes.

“I’d like to put it out there that we actually genuinely did break up. We didn’t do this for content why would we pretend to break up for content?” he said.

He explained that the pair ultimately felt they “couldn’t give up on our marriage and love like that,” adding: “Everyone just needs that break I guess.”

Harley also defended the authenticity of their television appearances, stating: “I’d like to put it out there that everything we film is real and not fake, as I don’t like to be fake.”

The joyful news arrives amid ongoing financial difficulties for the young family, which have been documented in recent episodes of 22 Kids and Counting.

In February, viewers learned that Harley had been forced to stop working following a health scare, leaving Millie as the household’s primary earner through her cleaning job at a local caravan park.

To lift her husband’s spirits, Millie surprised him with a puppy named Bella, but the couple soon faced heartbreak when a lump was discovered on the dog’s stomach requiring urgent surgery costing approximately £2,500.

Unable to afford the procedure, the pair began selling possessions to raise funds, with Millie making the difficult decision to pawn her wedding ring.

“I’ve pawned my ring,” she tearfully told Harley, who responded in disbelief: “You’ve pawned your ring. You’re joking me?”

Thankfully, after some financial help from her parents, Millie and Harley were able to save their beloved puppy.