Sue and Noel Radford's eighth daughter Katie has announced her pregnancy, along with a gender reveal.

Britain's biggest family – who are known for their TV show 22 Kids & Counting – is set to get even bigger as Katie, 21, and her boyfriend Connor revealed they are expecting their first child.

The pair's gender reveal saw dad-to-be Connor kicking a football and Katie use a cannon – with blue confetti and mist confirming that they are expecting a son.

The couple embraced in the sweet video, which Katie shared to Instagram along with the caption: "Baby Carter mummy and daddy can’t wait to meet you!"

Sue and Noel Radford's eighth daughter Katie has announced her pregnancy
Sue and Noel Radford's eighth daughter Katie has announced her pregnancy
The pair's gender reveal confirmed that they are having a boy
The pair's gender reveal confirmed that they are having a boy

Katie's siblings were quick to express their happiness as Millie - who is a mum of three - wrote on her Instagram Stories, writing: "Finally another little boy! You're going to be the best mummy ever, can't wait to meet my baby nephew!"

Other sister Sophie wrote: "So so so happy for Katie and Connor. A beautiful baby boy!", while Aimee wrote: "So happy for you both - another little nephew!"

Katie's sister Chloe, who has a young daughter herself, shared: "Beautiful day yesterday celebrating @katieeradfordd and @cxnnxr.carter baby BOY So happy and excited for both of you".

Katie's new arrival will be Sue and Noel's 15th grandchild - their eldest grandchild is Daisy, the daughter of Sophie and her partner, Joe.

Sue and Noel have already welcomed plenty of grandchildren into the family
Sue and Noel have already welcomed plenty of grandchildren into the family

There was more big news for the family just last month when Millie got engaged to her boyfriend Harley Passmore.

The 22-year-old looked completely taken by surprise as her boyfriend of two years popped the big question during their magical family Disney holiday on Thursday 18 April.

Harley shared a clip of their heartfelt proposal on his Instagram Story - he tagged Millie with an adorable caption, writing: "She said yes…I love you my wife to be."

Millie recently became engaged whilst on holiday at Disneyland
Millie recently became engaged whilst on holiday at Disneyland

More recently, Sue announced another big change to the family – they won't be moving. Sue and Noel had been planning to leave their family home for their 'dream house' out of Morecambe, where they have been living for 11 years.

The family spied a beautiful farmhouse which would allow them more privacy. However, the lack of bedrooms would mean five of their eldest children would have to move out.

To solve their problem, Sue had decided to let the older children rent out their current Victorian home. But in a recent post, Sue revealed that their plans have all fallen through.