The Teen Mom 2 star, who's already mom to a four-year-old son named Jace, is expecting a baby with boyfriend Nathan Griffith, In Touch Weeklyreported.
"Jenelle is definitely pregnant," a source close to Evans, 21, told In Touch.
"Jenelle has only told her closest friends and a few people in her family," added an insider. "Jenelle is obviously going to go through with the pregnancy, but is scared of all the backlash from haters who still judge her for not having custody of her son, Jace."
Jace has been in the hands of Evans' mother Barbara due to the reality TV star's history of arrests, unstable relationships and alleged substance abuse issues. Likewise, Griffith reportedly has a two-year-old daughter, Emery, whom he also does not have custody of.
"Nathan and Jenelle will be able to have a kid they are legally allowed to take care of," the insider told In Touch. "Jenelle might have a second chance at being a mom."
A source told E! News that Evans and Griffith planned the pregnancy, as Evans had recently told her friends the pair "were trying."
Evans' first doctor appointment was reportedly already filmed and will air on the fifth season of Teen Mom 2. The fact Evans has another baby on the way will allegedly be a major storyline in the upcoming season.
Evans and Griffith have only been dating for a few months, and according to E! News, Evans is still legally married to Courtland Rogers. Rogers is currently behind bars and there are allegedly "no plans to divorce."
Evans and Griffith reportedly moved in with one another in June.