Heidi Montag and Spencer Pratt welcomed the arrival of their first child on Sunday 1st October.
“We are so blessed to have a beautiful healthy baby boy,” Heidi told US Weekly.
"It was the hardest and most rewarding experience."
Spencer also described becoming a father as "officially the most lit day of my life".
Speidi, who found love on hit US reality show The Hills, have opted for a very American name for their son: Gunner Stone.
Heidi and Spencer announced they were expecting their first baby back in May, and revealed the sex shortly after.
"It was in my heart to have a boy," Heidi reveled.
"I thought Spencer really used to want a boy, and then a few months ago we had a conversation where he said, 'Let's just make sure it's healthy. Boy or girl, I don't care.”
Both Heidi and baby Gunner – who’s inherited his parents signature blonde locks and blue eyes - are said to be recovering well.
Speidi'spregnancy announcement has previously caused a rift in the Pratt family, as not only did it happen on Stephanie Pratt’s birthday, but she wasn’t told and only found out when she saw it in the news.
At the time, Steph told heat about the impact the news has had on her and the family: “I’d had a message from my brother earlier asking if I was awake, and I thought he was wishing me happy birthday, or something was wrong. I said ‘Is everything OK, is dad OK?’ I never heard back, and then I saw the news.
“I sent a screengrab to the Whatsapp group I have with Binky, Louise [Thompson] and Rosie [Fortescue], like, ‘Do you think is real?’
“I texted my mom the link and put a question mark next to it. Then I emailed my brother who said, ‘I don’t know how to call you in the UK’.
"My mom hadn’t even responded, she’d just said ‘How’s your birthday going?’ So I called my brother and said, ‘Is this real?’ And he said, ‘Yep’. I was like, ‘Oh my god’. I was mad."
WATCH: Heidi Montag's baby bump
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