At a November 22 sermon, her pastor— an openly recovering addict— said "that bad habits like drugs, sex and alcoholism can be broken when one finds Jesus," an onlooker told the magazine. "Leah nodded her head in agreement the entire time. It seems to really hit home for her."
As RadarOnline.com exclusively reported this summer, the mother of three girls, who shocked fans when she abruptly quit her hit MTV show last month, has been struggling with prescription painkiller abuse.
"She started going to a church that embraces forgiveness and recovery. She's determined to make a complete turn around," a source said. "She's finally ready to clean up the wreckage of her past."
Messer has plenty to work through. In addition to her ongoing drug problems, Calvert, 25, publicly accused her of cheating with an ex in October, and she's currently in a legal battle with her ex husband Corey Simms over custody of their 4-year-old twins Ali and Aleeah.
"For the first time, she's admitting that money and the spotlight of fame made her do some things that she regrets," the source explained. "She's determined to get the help she needs and come out of this a new and better person."
In addition to religion, In Touch reports the troubled stay-at-home mom also believes a baby could revive her failing marriage.
"She thinks a baby boy would make him happy," said an insider. "Leah knows Jeremy would never leave her if she got pregnant again. He's too much of a gentleman."