The 26-year-old actress and singer revealed that she's expecting her first child with husband Jamie Watson, writing an Instagram post that her 9-year-old daughter, Maddie is 'finally' getting a sibling.
Jamie's big sis couldn't help but share how excited she is, sharing Jamie Lynn’s post on Twitter on Sunday and writing, 'Maddie is going to be the best big sister!!! So happy for you @jamielynnspears!!!! Love you all sooo much!!!'
Jamie Lynn, 26, shared a photo on Sunday that revealed her large baby bump as she held hands with Watson and Maddie, her daughter with ex-fiancé Casey Aldridge.
Jamie captioned the adorable family photo, 'Looks like we are starting off 2018 with another big milestone...sooo happy to announce that Maddie is FINALLY going to be a big sister. I made a choice to lay low this year to focus on becoming my best self. 2018 has a lot coming, so GET READY.... #12DaysofJLS'