Teen Mom star Jenelle Evans is back in jail due to drugs.

According to TMZ Evans plead a deal in order to stay out of jail after being charged with drug charges including heroin, drug paraphernalia and illegal possession of Percocet. She pled guilty and received 18 months of unsupervised probation with no jail time . . . until she tested positive on a random drug test Monday morning.

The 21-year-old was arrested on April 23rd for heroin possession and assault. Evans had only recently come out to the public via her Facebook about the severity of her drug addiction when the arrest occurred says Hollywood Life. In fact a private conversation between Evans and a friend who is simply called “Amy” was released on crazydaysandnights.net earlier this year. The conversation centered around the subject of withdrawals and the two girls shared experiences and advice on how to deal with those withdrawals.

This has not been the first time since Evans was arrested for drug use. Evans will be released August 14th at 9:30 a.m.