A vertical chart illustrating the relative effectiveness of various birth control methods by average pregnancies per 100 women per year. The chart ranks methods from 'Fewer pregnancies' at the top, including implants, injections, intrauterine devices (IUDs), and sterilization, to 'More pregnancies' at the bottom, including no birth control. Intermediate categories show birth control pills, skin patch, vaginal rings with hormones, condoms, diaphragm, and behavioral methods such as withdrawal and avoiding sex during fertile days.*