Joe Wicks has become a dad for first time as his partner Rosie Jones welcomed a little baby girl.

The Body Coach star shared the happy news on Instagram with a picture of himself holding his newborn daughter to his bare chest.

"The very first moment we met," he captioned the beautiful shot.

"Last night at 9.29pm we had our first little baby. A girl weighing 7.2lbs.

"Rosie and the baby are both in great health and we are all so happy and can’t stop cuddling," he went on.

"Thanks to everyone sending well wishes and congratulations. Wish I could respond to them all. Lots of love, Joe, Rosie and baby."

The happy couple first revealed they were expecting in May 2018 when Joe shared a picture of them cuddling up and holding a snap of their baby scan.

They told fans Rosie was due on July 27 - meaning she was only a few days late.

"Hey everyone, I’m gonna be a daddy. This is the first time I've ever shared a photo of myself with Rosie," Joe wrote at the time.

(Image: Joe Wicks/Instagram)

(Image: Instagram)

"I've always chosen to keep my personal life and relationship private but with such an amazing new thing coming into our lives I thought it would be nice to share the news with you myself. We are both absolutely buzzing to be parents."

When the big day arrived, the nervous parents revealed there was no sign of labour just yet - and admitted they hadn't found out the sex during Rosie's pregnancy.

"Today is our official baby due date. We are both super excited now! No signs of it coming yet though," Joe said on Instagram.

"We don't know the sex either. Guess the sex and baby name in the comments below."

(Image: Instagram) (Image: Instagram)

While the pair have kept their relationship under wraps, it's thought they first started dating in September 2016.

Rosie - a former Page 3 girl and glamour model - was described as "The One" when Joe spoke to the Mirror recently.

"She’s definitely The One. But some things you have to keep for yourself," he revealed.

(Image: Instagram) (Image: Instagram)

"I live on social media every day, so the only thing I have that’s private really is me and my girlfriend."

Congratulations, Joe and Rosie!