ACOG Recommends IUDs and Implants as Best Contraceptive Methods for Teen Girls

WebMD: Which Birth Control Methods Are Best for Teens?, by Daniel J. DeNoon:

Sexually active teen girls' best bet for birth controlis either an IUD or a birth-control implant, say new guidelines from a leading doctors' group.

More than 40% of teens are sexually active. Nearly all of them use some kind of birth control. But fewer than 1 in 20 uses the most effective contraceptives. . . .