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Chance of pregnancy during first year of use:[1][2]
Method Typical use Perfect use
No birth control 85% 85%
Combination pill 9% 0.3%
Progestin-only pill 13% 1.1%
Sterilization (female) 0.5% 0.5%
Sterilization (male) 0.15% 0.10%
Condom (female) 21% 5%
Condom (male) 18% 2%
Copper IUD 0.8% 0.6%
Hormonal IUD 0.2% 0.2%
Patch 9% 0.3%
Vaginal ring 9% 0.3%
Depo Provera 6% 0.2%
Implant 0.05% 0.05%
Diaphragm and spermicide 12% 6%
Fertility awareness 24% 0.4–5%
Withdrawal 22% 4%
Lactational amenorrhea method
(6 months failure rate)
0-7.5%[3] <2%[4]
  1. Trussell, James (May 2011). Contraceptive failure in the United States. Contraception. 83 (5): 397—404. doi:10.1016/j.contraception.2011.01.021. PMC 3638209. PMID 21477680.
    Trussell, James (1 November 2011). Contraceptive efficacy. У Hatcher, Robert A.; Trussell, James; Nelson, Anita L.; Cates, Willard Jr.; Kowal, Deborah; Policar, Michael S. (eds.) (ред.). Contraceptive technology (вид. 20th revised). New York: Ardent Media. с. 779—863. ISBN 978-1-59708-004-0. ISSN 0091-9721. OCLC 781956734.
  2. Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention (CDC) (21 June 2013). U.S. Selected practice recommendations for contraceptive use, 2013: adapted from the World Health Organization Selected practice recommendations for contraceptive use, 2nd edition. MMWR Recommendations and Reports. 62 (5): 1—60. PMID 23784109.
  3. Van der Wijden, C; Kleijnen, J; Van den Berk, T (2003). Lactational amenorrhea for family planning. Cochrane Database of Systematic Reviews (4): CD001329. doi:10.1002/14651858.CD001329. PMID 14583931.
  4. Помилка цитування: Неправильний виклик тегу <ref>: для виносок під назвою Blenning2005 не вказано текст