Jenelle Evans and the cast of Teen Mom 2 has reportedly begun filming the upcoming season and according to a new report, she isn't happy.

As Evans remains in hiding following a shocking pregnancy announcement, a rumor has hit the web, claiming she and her co-stars, Leah Messer and Kailyn Lowry believe they are being treated unfairly.

"The girls think that [Chelsea Houska] is the favorite," a source revealed to Radar Online on Thursday. "It seems like she gets the best edit and they think it is unfair."

During Teen Mom 2 season seven, Evans was faced with accusations of bad parenting as did Messer. Meanwhile, Lowry has caught fire after opting to divorce husband Javi Marroquin, the father of her youngest son, Lincoln. Meanwhile, Houska's story line has focused on her fairy tale romance with fiance Cole DeBoer, with whom she is currently expecting her second child.

"Jenelle has been filming again," the insider revealed. "MTV knows her life is so up and down that they want to make sure they get all the details, [and] Leah's story with her girls and rehab is really good. MTV wants to make sure they keep filming to get all of that."

Although rumors have been swirling in regard to bad editing claims made by Evans and Messer, in which each of the girls have slammed the network, the source claims they are all back and ready for more drama.

"MTV has locked the girls all down for season 7 so they have been calling the latest filming 'extra' or 'bonus' footage so they don't have to negotiate a new contract," the source claimed.

The upcoming season of Teen Mom 2 is expected to air sometime later this year or early next year.

Tags: Jenelle Evans david eason MTV Reality TV Teen Mom 2