Leah Messer, ‘Teen Mom,’ Loses Custody Of Twins After Alleged Drug Use: Jeremy Calvert May Seek Custody Of 2-Year-Old

Leah Messer has new problems. At 23, Leah — known for her role on Teen Mom 2 — no longer has custody of her twins. Ali and Aleeah are only 5-years-old, and Messer is devastated, reported Radar Online.

The decision in court gives primary custody to the father of the twins, who is Corey Simms. Leah has lost primary custody to her former husband, and the decision goes into effect “immediately” following the October 13 court decision. Messer used to have her oldest children during the majority of the school week.

“Leah only gets the girls on the weekends now,” shared a source.

As to why the judge made the decision that has Messer so distraught, sources have revealed Leah had failed to make the progress in parenting that was expected after she exited rehab in June.

Leah Messer proves it's not easy being a "Teen Mom" star along with the rest of the "Teen Mom" cast.

Messer described her reasons for being in rehab as depression and anxiety, but insiders link her rehab treatment to treatment for abusing prescription painkillers.

“Leah’s really been screwing up…so Corey took her back to court,” added a source. “The judge looked at the girls’ school records, which show that they’ve been late for school, and made the change in custody.”

Messer had feuded with her ex-husband and Miranda, his current wife, and Leah is tearful over the bad news that she didn’t imagine would occur, according to that source.

More bad news for Messer may come from Jeremy Calvert, her second ex-husband. They share a daughter who is just 2-years-old. Calvert is concerned about tiny Adalynn’s safety when it comes to Leah, said a source.

Consequently, Jeremy may decide that the custody agreement concerning Adalynn, known as Addie, also needs to be changed so that Messer doesn’t endanger their little girl.

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“Everyone is worried about Addie. She recently wandered out of the house while Leah was distracted,” revealed the insider. “Thankfully, a police officer found Addie and brought her back home.”

Messer previously raised parenting concerns when she swore in front of the children, appeared to be neglectful when in the car, and delayed their supper until midnight. Moreover, Leah developed a relationship with a 32-year-old personal trainer who has two children prior to finalizing her divorce from Jeremy, causing questions about the 23-year-old Teen Mom star’s focus and priorities.

Calvert is so concerned that he’s moving forward with the goal of obtaining primary custody of his 2-year-old daughter, reported the International Business Times.

Although Jeremy is stressed about the way that Leah appears to be neglectful of Adalynn, with evidence after the little girl was discovered meandering around without an adult outside of Messer’s residence (fortunately a police officer found her), Calvert previously had been contemplating seeking primary custody.

Dr. Drew helps "Teen Mom" stars like Leah Messer make hard decisions.

The news that his 2-year-old daughter had been discovered outside her mother’s home without anyone to supervise her, however, changed his level of motivation from contemplating it to moving forward.

Jeremy has a job as a pipeline engineer. This career means that he must often leave his house, and that period during which he’s away from home, often for weeks, could impact the chances that he would get custody. Calvert had rights for visitation of the daughter that he shares with Leah after Messer and Jeremy divorced in the summer.

But because Jeremy’s custody agreement, if altered, would be complicated given his job, insiders claim that Calvert would go so far as switching his profession in order to protect his little girl.

Meanwhile, Leah attempted to put a positive spin on the change in custody for her twins. Messer shared on Twitter that she’s enjoying her weekends with her girls.

Will Teen Mom 2 depict the challenges that lie ahead for Leah? Messer may return to star on the seventh season in 2016, but MTV is not confirming that report yet. Also unknown are whether Leah’s exes Jeremy and Corey will star again with her.

[Image via Leah Messer/Twitter]