Largely due to increased contraceptive use, teen pregnancy and birth rates have declined since their peak in 1990. But 750,000 teens become preg- nant each year – the vast majority (82 percent) of these pregnancies unintended. Teens need youth-friendly services and complete, accurate information about abstinence, condoms, and con- traception in order to protect themselves from unintended pregnancy. But they also need to be able to envision a positive future for themselves: one in which education, employment, and healthy relationships are possible. Helping young people prevent unintended pregnancy is a challenge that teens, parents, youth serving professionals, policy makers, and society as a whole must face.