Billi Mucklow is expecting a baby girl.

Billi Mucklow's gender reveal (c) Instagram

Billi Mucklow's gender reveal (c) Instagram

The 'Only Way Is Essex' star - who already has sons Arlo, four, and Wolf, two - has confirmed she is set to welcome her first daughter with her partner, footballer Andy Carroll.

Taking to Instagram, she wrote: "It's a GIRL! I'm still in shock I can't believe were having a pink one ... I will cherish these photos forever thank you @sophiedunnephotography. #BabyGirl #PinkOne #LockDownGenderReveal #TheCarrollKids'. (sic)"

Earlier this month, Billi announced she is expecting her third child, who will be a sibling to 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)"

In her first pregnancy, Billi admitted that being pregnant has helped her to embrace her curves.

She said: "My body changed quite early in my pregnancy - your whole body shape changes and it took me a while to adapt to that, but I've enjoyed the experience of dressing my bump. I'm finally embracing my bumps, lumps and curves ... I'm going to give myself some time off first before going hard. The way I see it, I've missed this summer now so I'm going to start for next summer. That means I know I've got a full year to get in shape again."