Cody Ko and Wife Kelsey Kreppel Welcome First Baby Together, a Boy: 'We Love You, Otis'

"Our little guy arrived last week and everyone is happy and healthy," Ko wrote on Instagram

Cody Ko and Kelsey Kreppel are parents!

The YouTubers announced the exciting news with a joint Instagram post on Sunday, sharing a photo of their baby boy, Otis, for the first time.

Alongside a sweet shot of Kreppel holding the newborn underneath a tree, Cody Ko (née Cody Kolodziejzyk) wrote, "Our little guy arrived last week and everyone is happy and healthy."

"We feel like the luckiest people in the world," Kolodziejzyk, 33, added. "We love you, Otis 🩵."

Several of the couple's YouTuber pals offered enthusiastic congratulations, including Kurtis Conner and Danny Gonzalez, who also recently welcomed his first child.

Conner commented, "Congrats guys!! ❤️❤️❤️🥳," while Gonzalez wrote, "Yes!!!!!! Congrats!!!!!!!"

Related: Cody Ko Opens Up About 'Unreal Moment' He Learned Wife Kelsey Was Pregnant: 'Didn't Feel Real' (Exclusive)

In August, Kolodziejzyk announced that he and Kelsey were expecting their first baby together with another joint Instagram post.

"We're having a baby boy in January 🩵🩵🩵🩵🩵," Kreppel captioned the photos, which included a sonogram, a photo of the couple with matching fake arm tattoos that said "mom" and "dad," and videos of the pair telling their family.

The influencer couple tied the knot in February after getting engaged about a year before. Although this is their first baby together, the couple is pet parents to their dog Chili and cats Ham and Brisket.

In November, Kolodziejzyk chatted with PEOPLE exclusively, revealing how Kelsey told him that she was pregnant.

"We were supposed to leave for Australia the next day for the Iron Man," the Tiny Meat Gang rapper told PEOPLE. "And she was texting me more often than she would, being like, 'When are you coming home? When are you coming home?' Because I was like out doing the podcast or working or something and I was like, 'I'll be home eventually.'"

"And I was like, 'It's kind of weird.' I was like, 'Is there something going on?' And she was like, 'No, no just excited to see you,'" he continued. "And I was like, 'Ok, cool.' I got home and we were eating dinner and she was like, 'Should I bring, do you think I should pack this?' And she turned the pregnancy test to me and I was like, 'Oh my god.'"

"That was a pretty unreal moment for us. It didn't feel real," Kolodziejzyk told PEOPLE. "I think that's something we hear a lot with other people that find out they're pregnant because it doesn't feel real until you're like... even the first doctor's appointment when we actually saw the baby, that's when it's like, 'Oh my god, this is real.'"

"And even then it took a couple months or a month or something to really come to terms with it. I mean obviously, we were thrilled, but it's just such a crazy change in life," he added.

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Kolodziejzyk also shared that he and Kreppel don't plan on bringing their child into the spotlight anytime soon.

"No, we're not going to put them on the internet at all," he told PEOPLE. "It feels weird that they're going to grow up and they are like, 'Oh I didn't want this to be... I didn't really want my life to be documented.' I just think some things are meant to be private."

"But in terms of content, I'm excited to talk about parenthood," the YouTuber said. "I think that's something as our audience ages up with us, that's something that will become more relevant to them as well."

"So I'm excited to talk about the ups and downs of parenthood for sure," he added.

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