Reality star Binky Felstead has given birth to a baby boy.
She wrote: "OUR BOY!!! 04.06.21. 22.38. 8.8lbs."
In the photo, Ms Felstead can be seen smiling for the camera as she breastfeeds while Mr Darnton looks down at the baby with his hand on his fiancee’s arm.
Many congratulated Ms Felstead on her new bundle of joy.
Former Made In Chelsea star Ashley James wrote: “Congratulations lovely” while The Only Way Is Essex’s Billie Faiers said: “Congratulations to you all lots of love”.
Mr Darnton also shared a snap of the couple preparing to leave the hospital, holding onto his son’s carrier.
He captioned his photo: “Home time with my champions â¤ï¸ PROUD”
The 30-year-old is already a mother to daughter, India, with her ex-partner Josh "JP" Patterson, who also appeared on E4 show.
Ms Felstead announced that she was engaged to Mr Darnton in September.
The couple revealed on Boxing Day that they were expecting a baby.
The pair met at Oxfordshire members’ club Soho Farmhouse at the start of last year.
The TV star discussed her relationship with Mr Darnton with Hello last year.
She said: “I knew he was special soon after I met him. We just got on really well and we laughed the whole time.”
"Obviously, with me having India, I was very wary and he wanted to let me know that he wasn’t just going to turn around and go. He was committed. I guess when you know, you know, don’t you?"
She added that the couple has a “five-year plan” and are looking forward to getting “a place in the country.
"We want to get a big house where friends can come and stay at weekends and I want that big open-plan kitchen with an Aga with ducks and chickens running around – a bit like The Darling Buds of May."