'Teen Mom OG's' Catelynn Lowell & Tyler Baltierra Welcome 4th Daughter

It's another girl for the Baltierras! "Teen Mom OG" stars Catelynn Lowelll and Tyler Baltierra have welcomed their fourth daughter. The proud parents announced the happy news on Instagram over the weekend, with Tyler sharing a peek at the newborn in the hospital, teasing, "She's here and she's perfect."