Catelynn Lowell Catelynn Lowell

Teen Mom star Catelynn Lowell gave birth to a daughter on New Year's Day, Us Weekly reports.

Lowell's fiance Tyler Baltierra posted a photo of her holding their baby girl on Instagram Thursday night. "Momma Bear holding our little angel! Can't tell you the feeling of witnessing this. Look at my beautiful bride to be! That woman is beyond strong, caring, and selfless. Couldn't have asked for a better little family #Blessed #NewYearBaby #MyGirls #AreMyWorld,"Baltierra wrote.

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Lowell and Baltierra, both 22, are already birth parents to daughter Carly, 5, whom they placed up for adoption while filming 16 and Pregnant in 2009. The couple were engaged for five years before calling off their wedding in July 2013, but on Christmas Day, Baltierra proposed to Lowell again.

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