The National Campaign to Prevent Teen and Unplanned Pregnancy says 8 out of 10 fathers don't ever marry the teen mother of their child.

Hello Levi Johnston and Bristol Palin.

"Marriage and birth patterns among teens have changed over time, shifting from a general trend of marrying before pregnancy, to marrying as a result of pregnancy, to becoming pregnant and not marrying," said Sarah Brown, CEO of The National Campaign to Prevent Teen and Unplanned Pregnancy. "Even though many unmarried teen mothers have high expectations for eventually marrying the father of their child, few ever do."

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Teens, Relationships, and Marriage