"Teen Mom: Young and Pregnant" will follow Ashley, Brianna, Jade, Kayla and Lexi as they prepare (and eventually become) young moms. The series will show the highs and lows of their pregnancy journeys -- and the unbelievable changes they endure after the babies are born. From excitement to fear, this group of girls will take viewers inside their emotional lives. And like the Teen Mom OG and Teen Mom 2 women have shown us through the years, the new ladies' worlds are about to change forever and it's time to "mom up."