Percentage of teens who will experience a first birth based on analyses of NCHS Vital Statistics final birth data. The rate of abortions among adolescents is the lowest since abortion was legalized in and is 76 percent lower than its peak in Find more information about the Pregnancy Assistance Fund. Births: Final data for Washington, DC: Child Trends. About 77 percent of teen pregnancies are unplanned. Natality public-use data [Data set]. The money can also be used to improve services for pregnant women who are victims of domestic violence and to increase public awareness and education efforts surrounding teen pregnancy prevention, among other activities. For example, adolescents who are enrolled in school and engaged in learning including participating in after-school activities, having positive attitudes toward school, and performing well educationally are less likely than are other adolescents to have a baby.