Loved ones of Teen Mom OG star Ryan Edwards are concerned he needed more than 30 days in rehab to treat his battle with addiction, according to a new report.

The 30-year-old was arrested Tuesday on a drug-related charge, and last year entered rehab for heroin addiction - but people close to Edwards have reportedly raised concerns he may have needed more time in treatment to cope with his issue.

'There have been major concerns about Ryan's sobriety,' a source told Us Weekly. 'At the upcoming reunion, his drug addiction is a major subject. Specifically, Ryan needed more inpatient treatment, longer than what he previously got.'

Concerns: Loved ones of Teen Mom star Ryan Edwards had 'major concerns' that he needed more than 30 days in rehab to treat his battle with addiction, according to a new report (pictured in his mugshot Tuesday)

The upcoming two-part reunion will air on MTV on April 16 and 23.

Edwards was arrested on a drug-related charge on Tuesday, the same day it was revealed his wife Mackenzie Standifer is pregnant with their first child.

The MTV star was booked on Tuesday at Red Bank City Police Department in Tennessee.

A source told Radar Online that Ryan was arrested at his home on a warrant at 3pm for petition to revoke, which means breaking probation, related to a past simple possession of heroin charge.

'He was held on $5,000 bond,' a Hamilton County Jail spokesperson told the website. 'He was bonded out at 10:15pm.'

Starting a family: Teen Mom OG's Ryan Edwards and Mackenzie Standifer are expecting their first child together

The arrest news comes one day after it was revealed Ryan and wife Mackenzie Standifer are expecting their first child together.

In a teaser shown at the end of Monday night's episode of Teen Mom OG, MacKenzie was seen showing her positive pregnancy test to show producer Jeni who jumped up and down with excitement.

Ryan and Mackenzie, 21, married in a church ceremony in November which followed an initial smaller ceremony in May when they eloped before Ryan's treatment for heroin addiction.

Booked: Ryan was arrested in Tennessee after breaking probation related to a past simple possession of heroin charge

Ryan and Mackenzie have yet to make an announcement about their baby news on social media.

But the couple had hinted that they were ready to start a family in a recent episode with Ryan telling Mackenzie: 'I'm ready when you're ready, I think now is as good a time as ever.'

In very worrying scenes aired on MTV Ryan was filmed falling asleep and slurring his words while driving under the influence on the way to the couple's wedding in May 2017.

Mackenzie was shown in a white wedding dress next to him looking scared and trying to take control of the wheel before turning off the in-car cameras.

Happy: In a preview of next week's episode on Monday night Mackenzie showed her positive pregnancy test to producer Jeni

Starting a family: The couple said 'I do' in November after initially eloping in May when Ryan was filmed driving under the influence of drugs. He checked into rehab shortly afterwards

During the season seven premiere Mackenzie told show co-producer Kiki that Ryan had revealed in rehab that he was allegedly using drugs three times a day, totaling about $10,000 a week.

Ryan completed 30 days at the rehab facility and said in a statement afterwards: 'I am back home now and doing well, and life could not be better,'

The couple tied the knot again at their 'original, intended' church ceremony in November.

Mackenzie told E! News: 'It was amazing, it was the best day ever. Everything went so smoothly. It could not have gone any better.'

She continued, 'This just felt like the actual wedding, it just felt like the day. That's the anniversary that we will be using, in November. It does feel different, it does feel legit. It's like what I've always dreamed of.'

Worrying: Ryan was shown almost falling asleep as he appeared to drive under the influence to his own wedding in May 2017

Shocking: Mackenzie was shown in a white wedding dress next to him looking scared and trying to take control of the wheel before turning off the in-car cameras

Ryan shares a son named Bentley, nine, with Teen Mom's Maci Bookout, one of the original stars of 16 & Pregnant.

Ryan's struggle with addiction has been a main theme on the show with ex Maci expressing fears that he will die if he doesn't get control of his life.

In episodes that aired just before Christmas Maci was seen requesting drug tests from Ryan - who has revealed his drug of choice was heroin - before he could have visitation with their son.

She eventually agreed for Ryan to see his son under the condition that his parents Jen and Larry supervise the visits.

Mackenzie also has a son named Hudson, four, with her ex Zachary Stephens.

Teen Mom OG airs on MTV Mondays at 9 pm ET.