Among contraceptive users in the US, the most commonly used methods (1) are Oral contraceptives (OCs): 21% Female permanent contraception (sterilization): 28% Male condoms: 13% Male permanent contraception: 9% Intrauterine devices (IUDs): 13% Withdrawal (coitus interruptus): 6% Progestin injections: 3% Contraceptive rings or patches: 2% Subdermal progestin implants: 3% Fertility awareness methods (periodic abstinence): 3% Female barrier methods: < 1% (See table Comparison of Common Contraceptive Methods.) In the first year of use, pregnancy rates with typical use are < 1% with methods unrelated to coitus and not requiring user involvement (IUDs, subdermal progestin implants, sterilization) About 6 to 9% with hormonal contraceptive methods unrelated to coitus and requiring user involvement (estrogen - progestin OCs, transdermal patches, or vaginal rings; progestin - only OCs; progestin injection) > 10% with coitus-related methods requiring user involvement (eg, condoms, diaphragms, fertility awareness methods, spermicides, withdrawal) Pregnancy rates tend to be higher during the first year of use and decrease in subsequent years as users become more familiar with the contraceptive method they have chosen.