Type | Chance of pregnancy over 1 year of typical use* |
External (male) condom | 13% |
Internal (female) condom | 21% |
Diaphragm used with spermicide | 17% |
Cervical cap used with spermicide | 16% (for people who have never given birth) 32% (for people who have given birth) |
Sponge | 14% (for people who have never given birth) 27% (for people who have given birth) |
Spermicide alone | 21% |
Vaginal "pH regulator" gel | Not yet known – this is a newer product and needs more study |
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