The social media personality and boxer first met on Love Island in 2019 and announced that they were having a second child in February of this year.
The couple revealed the news of the birth of their second child on Instagram, with the caption "....and then there were 4."
The post which was uploaded on Wednesday has already reached more than 1.5 million likes.
View this post on Instagram
The couple have not revealed the name or gender of their new baby.
The comment section has been flooded with support from fans and friends, among those being Irish reality star, Maura Higgins who said: "Congratulations again. So happy for you all."
Haghue has been open about her struggles with pregnancy after her first child, Bambi, back in 2023. She described it as challenging times and that she had "extreme emotions."
"I spent five to six hours rolling around in the bed crying in agony. I'm not going to beat around the bush... I was not prepared. She's completely and utterly worth it all though. Every single hard moment!" she said.
After their appearance on Love Island back in 2019, the pair remained together and got engaged until they split up in August 2024. It was revealed that ther pair split up as Fury turned to alcohol after his injury. When they told the public they were back together, Haghue confirmed that Fury hadn't had a drink in four months and that "things are looking so much better".
The couple revealed May of last year that they were in fact back together.
