The 46-year-old reality star and his partner, Gage Edward, welcomed a baby girl via surrogate on Tuesday.
"At 4:22pm today, I grew up," Lewis shared on Instagram
, alongside a pic of him snuggling his new bundle of joy. "Welcome Monroe Christine Lewis."
The Flipping Out star confirmed the gender of the baby back in May with a clever Instagram post.
Last week, Lewis posted a photo of his daughter’s ultra-chic nursery, complete with a modern crib, stuffed animals and gold accent pieces.
"All we need now is the baby," he captioned the post with the hashtags "#40weeks #babycountdown #babywatch2016 #hurryupalready."
And, it looks like he's ready to spoil his little bundle of joy. "I know she's not here yet but…" he captioned a post, alongside a photo of himself with a cute pony.
Season nine of Flipping Out premiered earlier this year and gave fans a glimpse into Lewis’ fertility journey and his thoughts on parenthood.
"I mean, I'd like to think I’m gonna be a good parent," he explained on the show, "But I'm sure I’m gonna make a lot of mistakes. We should just have two [kids] in case I f**k up the first one."
Lewis isn’t the only celeb with recent happy baby news. Last Tuesday, ET confirmed that Kerry Washington gave birth to her second child with husband Nnamdi Asomugha, a baby boy, on Oct. 5.
ET spoke with the Scandal star last month at the Emmy Awards, when she admitted to having a bit of anxiety about expanding her family of three.
"I'm an only [child] so every time the family grows it uh... it brings up a little bit of anxiety," Washington explained. "But it’s fantastic. I'm really happy."
For more on Washington’s bundle of joy, watch the video below.