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Teen Mom 2, Jenelle

MTV

Here's a stunning revelation: "It's so hard to have a baby when you're a teenager, because when you're 19 relationships don't work."

Gee, what made you come to that realization, Kailyn? This sad-but-true statement opens up the new trailer for MTV's hit reality series, Teen Mom 2, which premieres Nov. 12.

The promo is jam packed with teases of the drama that fans will come face-to-face with in the new season, including:

Adam putting a ring on Chelsea!

Leah revealing she's pregnant again!

Jenelle facing jail, rehab and her mother's wrath!

Check out the extended preview below: