'Teen Mom' Stars and Their Kids

Palin says her husband's PTSD has been "hard on our marriage" in new sneak peek.

There are two new mamas joining the cast of "Teen Mom OG," and if the new trailer is any indication, they're bringing some serious drama with them.

Bristol Palin and "The Challenge" alum Cheyenne Floyd both appear in the sneak peek, which MTV dropped on Monday afternoon ahead of the show's October 1 premiere. Judging by the tears and tensions, they'll fit in perfectly.

When the season begins, Palin is still with the father of two of her three children, current ex-husband Dakota Meyer. The 27-year-old is seen talking about their issues, confessing, "My husband Dakota has been struggling with PTSD and it's been hard on our marriage."

"We don't know how to coexist together," she says. "I don't want to raise my kids to think this is what a marriage looks like, you know?"

Meyer filed for divorce in February 2018, with Palin confirming she was officially divorced in August. She also shares son Tripp with ex Levi Johnston.

As for Cheyenne Floyd, unlike Bristol and the other moms on the show, she wasn't actually a teen mom -- she gave birth when she was 24. She first appeared on MTV's "Are You the One," before competing on "The Challenge: Rivals 3," where she met and hooked up with Cory Wharton. She got pregnant with Wharton's child, Ryder. She's seen navigating a new relationship while also dealing with baby daddy drama in the preview.

Now back to the original OGs.

Things seem shaky for Catelynn and Tyler Baltierra, the latter seen in tears as he says, "If someone asked me, 'Are you happy in your marriage?' I'd say, 'Absolutely not.'"

Elsewhere, Maci Bookout and her husband Taylor McKinney appear to be having major drama with Maci's ex, Ryan Edwards, while Amber Portwood and her new beau Andrew Glennon are new baby bliss.

"Teen Mom OG" premieres Monday, October 1 at 9PM on MTV.

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