Briana DeJesus is joining the cast of "Teen Mom 2." The 23-year-old MTV veteran confirmed Monday on the "Teen Mom OG" aftershow that she will join Jenelle Evans, Chelsea Houska, Kailyn Lowry and Leah Messer in Season 8. "It's a little nervewracking," she confessed. "It's been so long. Being on national television -- none of this has hit me yet. I don't know when it's going to hit me." DeJesus came to fame on the MTV series "16 & Pregnant" and later starred on "Teen Mom 3." She told E! News that "Teen Mom 2" will feature some "very intense" moments as she prepares to welcome her second child. "There are some deep moments. A lot of educational moments, but it's very intense. That's where my life is right now," the star said. "[I'm] excited to continue sharing my story because things left off right around when life was becoming hectic and now I get to finish sharing that story," she added. DeJesus is mom to 5-year-old daughter Nova with ex-boyfriend Devoin Austin, and announced in January that she's expecting with new beau Luis. She confirmed in May that she's having another baby girl. "Stella, you will be loved and everybody can't wait to meet you!" she wrote May 21 on Instagram.