Amber Portwood defended her fiance in an interview last week.

'Teen Mom OG' Amber Portwood Is Furious With Gary Shirley: Find Out Why!

After being bombarded with news of Matthew Baier's allegedly secret children on last week's episode of Teen Mom OG, Portwood spoke out, revealing that everyone makes mistakes.

"There have been many stories and allegations surrounding Matt's past," Portwood said in a statement to MTV News last week. "Just as my own journey has proven, people make mistakes and should be given a second chance without being judged solely on those choices. We are happy and focused on building our future together."

'Teen Mom OG' Amber Portwood's Fiance Is 'Conning, Manipulating' & More, Claims Former Friend

Portwood went on to add that despite Gary Shirley's paperwork, which reportedly revealed proof of Baier having fathered seven children, he only has five.

"[Matt] does only have five kids," she explained. "I can say that today we're in a great place. That was a few months ago. Matt still says he has five kids. The thing I always go for me to is if he has five, why the hell wouldn't he tell me if he has seven?"

Portwood also defended her fiance on Twitter.

"How can you guys forgive me for my past but bash Matt for his! Why are you even following me? Not only did he have a job but his x boss works on our houses we're flipping," she wrote. "I'm just shocked at these reactions honestly."

For more of Amber Portwood and Matthew Baier, tune into Teen Mom OG on Mondays at 10 p.m. on MTV, and check out Portwood's confrontation with Shirley below.