12/21/2011 05:32 am ET | Updated Feb 20, 2012

'Teen Mom 2: After Show': What Teen Moms Wish They Knew Before They Got Pregnant (VIDEO)

The idea behind "Teen Mom" and "Teen Mom 2" was for them to serve as cautionary tales to teenagers that teen pregnancy and parenthood is far more difficult than most young people can imagine. Parents and teachers and other adults say it all the time, but the message doesn't seem to get through.

On the "Teen Mom 2: After Show" (Tue., 11 p.m. ET on MTV), SuChin Pak sat down with the girls to ask them what they wish they'd known before they got pregnant. The answers were exactly what was expected, because hindsight brings the same wisdom that the adults have been trying to impart for years.

Kailyn Lowry wished she could have known how time-consuming a baby is, and "how hard it is to focus on everything else you have going on in your life besides having a baby." For Jenelle Evans it was missing out on sleep and hanging out with friends ... in other words, missing out on being a typical teenager.

"For me I wish I would have appreciated more of being a child," Leah Messer said. "'Cause now that it's gone, it's like gone in a flash."

"Teen Mom 2: After Show" airs Tuesday nights at 11 p.m. ET on MTV after all new episodes of "Teen Mom 2."

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