
Failure Rates of Contraceptives
Number of Women Out of One Hundred Experiencing Unintended Pregnancy While Using Contraception
| Key: | |
| 1 Woman Becomes Pregnant: | |
| All 100 Women Become Pregnant: | |
| Typical Use: | Failure rates for women when contraception is not used every time they have sexual intercourse and/or it is not used according to instructions every time. |
| Perfect Use: | Failure rates for women when contraception is used every time they have sexual intercourse and it is used according to instructions every time. |
| Male Condoms: | |
| Out of 100 Women Using this Method | |
| Typical Use: 14 Women Become Pregnant | |
| Perfect Use: 3 Women Become Pregnant | |
| Withdrawal: | |
| Out of 100 Women Using this Method | |
| Typical Use: 19 Women Become Pregnant | |
| Perfect Use: 4 Women Become Pregnant | |
| Oral Contraceptives - Combination: | |
| Out of 100 Women Using this Method | |
| Typical Use: 5 Women Become Pregnant | |
| Perfect Use: Less than 1 Woman Becomes Pregnant | |
| Oral Contraceptives - Progestin-Only: | |
| Out of 100 Women Using this Method | |
| Typical Use: 5 Women Become Pregnant | |
| Perfect Use: 3 Women Become Pregnant | |
| Hormonal Injections - Depo Provera: | |
| Out of 100 Women Using this Method | |
| Typical Use: Less than 1 Woman Becomes Pregnant | |
| Perfect Use: Less than 1 Woman Becomes Pregnant | |
| Estrogen/Progestin Hormonal Injections (not currently available in US): | |
| Out of 100 Women Using this Method | |
| Typical Use: Less than 1 Woman Becomes Pregnant | |
| Perfect Use: Less than 1 Woman Becomes Pregnant | |
| Hormonal Implants: | |
| Out of 100 Women Using this Method | |
| Typical Use: Less than 1 Woman Becomes Pregnant | |
| Perfect Use: Less than 1 Woman Becomes Pregnant | |
| Hormone Patch - Ortho-Evra: | |
| Out of 100 Women Using this Method | |
| Typical Use: Less than 1 Woman Becomes Pregnant | |
| Perfect Use: Less than 1 Woman Becomes Pregnant | |
| Vaginal Hormonal Ring - NuvaRing: | |
| Out of 100 Women Using this Method | |
| Typical Use: Not yet known | ** |
| Perfect Use: Less than 1 Woman Becomes Pregnant | |
| Spermicides: | |
| Out of 100 Women Using this Method | |
| Typical Use: 26 Women Become Pregnant | ![]() |
| Perfect Use: 6 Women Become Pregnant | |
| Contraceptive Sponge: | |
| Out of 100 Women Using this Method | |
| Typical Use: 13 Women Become Pregnant | |
| Diaphragm: | |
| Out of 100 Women Using this Method | |
| Typical Use: 20 Women Become Pregnant | |
| Perfect Use: 6 Women Become Pregnant | |
| Cervical Caps: | |
| Out of 100 Women Using this Method | |
| Typical Use: 18 Women Become Pregnant | |
| Perfect Use: 6 Women Become Pregnant | |
| Female Condoms: | |
| Out of 100 Women Using this Method | |
| Typical Use: 21 Women Become Pregnant | ![]() |
| Perfect Use: 5 Women Become Pregnant | |
| Copper IUDs (Intrauterine Devices): | |
| Out of 100 Women Using this Method | |
| Typical Use: Less than 1 Woman Becomes Pregnant | |
| Perfect Use: Less than 1 Woman Becomes Pregnant | |
| IUDs (Intrauterine Devices): | |
| Out of 100 Women Using this Method | |
| Typical Use: 3 Women Become Pregnant | |
| Perfect Use: 3 Women Become Pregnant | |
| Lactational Amenorrhea Method: | |
| Out of 100 Women Using this Method | |
| Typical Use: 2 Women Become Pregnant | |
| Perfect Use: 2 Women Become Pregnant | |
| Natural Family Planning: | |
| Out of 100 Women Using this Method | |
| Typical Use: 24 Women Become Pregnant | ![]() |
| Perfect Use: 2 to 9 (average 6) Women Become Pregnant | |
| Female Sterilization: | |
| Out of 100 Women Using this Method | |
| Typical Use: Less than 1 Woman Become Pregnant | |
| Perfect Use: Less than 1 Woman Become Pregnant | |
| No Contraceptive Method: | |
| Out of 100 Women Using this Method | |
| Typical Use: 85 Women Become Pregnant | ![]() |
Updated 5/12/2005
Related Information:
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