Billi Mucklow is expecting her third child.

Billi Mucklow

Billi Mucklow

The former 'The Only Way is Essex' star and her Premier League footballer fiance Andy Carroll are set to add to their brood, which includes their two kids, Arlo, four, and Wolf, two, and his two children, Emilie Rose, 10, and Lucas, six, from a previous relationship.

She wrote on Instagram: "Here We Go Again! @andytcarroll

#TeamCarroll #5Aside #LoveMyBabies (sic)"

The 31-year-old star shared a picture in black and white - the club colours of Andy's side Newcastle United - of the four kids posing together and all holding onto her baby scan picture.

Andy shared the same image, and he wrote: "Children Make Your Life Important #HappyHighFive @billimucklow (sic)"

Billi gave birth to her second child, who they named Wolf Nine, in November 2017.

She wrote on Instagram at the time: "Wolf Nine Carroll You Have Stole Our Hearts 15-11-17 #BabyBoy #Wolfie #MyLittleChubbyCub (sic)"

Billi also shared a picture of a blue bib with Wolf's initials, W9C, on, and she wrote: "Wolf Nine Carroll You Have Stole Our Hearts 15-11-17 #BabyBoy #Wolfie #MyLittleChubbyCub (sic)"

While it's not known why the pair gave their son the moniker Wolf Nine, the number could be a reference to the figure Andy - who is also a dad to Emilie Rose, eight, and son Lucas, five, from a previous relationship - wrote on his back while playing for West Ham, and during his first spell for boyhood team Newcastle.

David Beckham named his daughter Harper Seven after the number he preferred wearing during his football career for England and Manchester United.