Catelynn Lowell And Tyler Baltierra Welcome Baby Girl

Catelynn Lowell and Tyler Baltierra's "last baby" is here!

The Teen Mom OG couple are the delighted parents to a baby girl, Tyler shared in a Instagram story.

"She's here and she's brilliant Tyler posted.

Cate teased her daughter's imminent arrival, writing "Baby R is on her way ❤️ send positive vibes."

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The MTV sweethearts, who recently celebrated 15 years together, shared in February that Baby Baltierra could be "coming soon." The pregnancy announcement featured siblings Novalee and Vaeda wearing matching T-shirts that read "My Parents Did Not Practice Social Distancing, Big Sister 2021."

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Soon right after, the couple -- who made it no secret that they really wanted a boy to round out their clan -- revealed it was "another girl." And right now Baby R is here -- and willing to play with her sisters.

Distribute your congrats to the Baltierras, and live with MTV News for more updates!