Our thoughts are with Teen Mom OG stars Amber Portwood and Matt Baier during this difficult time.

In a clip from the MTV reality series, the mother-of-one reveals to her producer, Kerthy, that she is unable to get pregnant again because of her medication. Amber has one eight-year-old daughter, Leah, from her relationship with Gary Shirley. Matt also has children from previous relationships.

MORE: Maci Bookout Shares Exciting Baby News!

Amber tells Kerthy that her ex asked her and Matt about marriage and babies at a birthday party for their daughter.

"I just found out that I got re-diagnosed with borderline personality and bipolar disorder, and I've been taking three different medications that now I'm going to have to take for the rest of my life. I can't get pregnant on this medication," she explains. "I can get pregnant, but it would mess up the fetus."

Matt goes on to explain that "She'd have to get off the medication right away, and her mental health is much more important than that right now."

MORE: Kailyn Lowry's Rumored Baby Daddy Appears on Her Snapchat — See the Pic

While fans are disappointed to hear this is the case, we totally agree with Matt that her mental health is more important!

The couple recently revealed that they rescheduled their wedding for this upcoming October.

Scroll through the gallery to see how much Amber has changed over the years!