'Teen Mom' Star Amber Portwood Back in Jail!

Amber Portwood just can't seem to stay out of trouble.

The Teen Mom star is back in jail after violating her probation, reports E! Online. Amber failed to appear in court in Indiana for her arrest in December for drug possession. Not appearing as scheduled broke her probation.

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But according to her brother, she was resting after surgery.

"It's really sad because just the other day Amber was talking about how she was so happy to finally be turning her life around," Shawn Portwood told E!. "She said she was going to work hard to get her charge reduced. Her new goal is to join the military. She's been doing so well."

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Amber also spent two months in jail back in December after she was caught with medicine that had no prescription. It seems that Amber just can't seem to stay out of trouble.

Amber's brother isn't the only member of her family who is speaking out. Her mom, Tonya Portwood, tells RadarOnline.com that "she had surgery and was on bed rest for a couples of days. They got it wrong, she shouldn't be where she's at right now."

And Shawn even tried to calm her Facebook fans down: "Don't flip your lid! I'm pretty positive she will be out next week!"

Amber's ex Gary Shirley continues to have full custody of their daughter, Leah.