While complete data on teen pregnancy is lacking, the estimated rate of teen pregnancies decreased between 1992 and 1996 for both 15 to 19-year-olds and 15 to 17-year-olds. For every U.S. teen, 15 to 19 years of age, who have had sexual intercourse, 10 percent will become pregnant.

	1998	1999	2000	2001
Percent repeat births to 15 to 19 years olds	22.2	21.6	21.0	20.3

It is estimated that 78 percent of teen pregnancies are unplanned. Of all pregnancies to teens, 14 percent result in miscarriage, 30 percent result in an abortion and 56 percent result in a live birth.^{(10, 11, 12, Table 1)}