Only 50 of teen mothers age 15-19 earn a high school diploma only 38 of teen mothers age 15-17 earn a high school diploma by age 30, only 1. National campaign to prevent teen and unplanned pregnancy, counting it up the public costs of teen childbearing 2013 external icon. 3 in 10 teen american girls will get pregnant at least once before age 20. Parenthood is the leading reason that teen girls drop out of school. More than 50 of teen mothers never graduate from high school. About 25 of teen moms have a 2nd child within 24 months of their first baby. although teenage mothers today are more likely to finish high school or earn their ged than in the past, pregnant teens are less likely to attend college than teens who do not become pregnant. More specifically, only 40 percent of teen mothers complete high school, and less than two percent finish college before they are 30-years-old. In australia, the rate of teenage births has decreased between 20, from 17. In 2015, 8,268 babies were born to 8,203 teenage mothers aged less than 20, accounting for 2. Children of teen mothers perform worse on many measures of school readiness, are 50 percent more likely to repeat a grade, and are more likely than children born to older mothers to drop out of high school. Incorporate teen pregnancy prevention into state efforts to reduce the dropout rate and improve educational attainment.