By Breaking Celebrity News Staff

Amber Portwood is free again....at least for now.

The troubled Teen Mom star was sprung Friday from the Madison County, Indiana jail where she'd spent the previous week.

As Breaking Celebrity News reported, Amber was thrown in jail after a judge determined she'd lied about why she missed a court-ordered drug test.

"She had surgery, and basically she was on bed rest for a couple of days," Amber's mother, Tonya Portwood, told us exclusively.