Conor McGregor and Fiancée Dee Devlin Welcome Baby No. 4: 'Another Chunky Healthy Boy'

Conor Mcgregor/Instagram

“Another chunky healthy boy into the world. Dee you are my hero ❤️🙏,” he wrote in his caption.

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

As they’re chatting, co-host Mark Consuelos, 52, asked McGregor about his three children, whom he shares with Devlin.

“I have three children; I’ve got two boys and a girl,” McGregor responded. “My oldest one, Conor Jr., is 6, my daughter Croia Mairead, 4, and my youngest son Rian has just turned 2. So, things are going well.”

“We’ve also got another on the way,” the Irishman said as cheers erupted. “So there’s a lot going on.”

“Every day since I started in this game, she’s supported me,” he toldVIP Magazineback in 2013. “She’d drive me to the gym, and she’d listen to all my dreams. I wouldn’t be doing this if it wasn’t for her.”

McGregor added at the time, “I knew her a bit beforehand, but I think the first time I spoke to her properly was when I saw her in a nightclub. I asked her to come over and we just started chatting. She seemed like a nice girl, and I like good girls.”

source: people.com