There are four main methods that we term 'natural': abstinence, Fertility Awareness method (FAM), Lactational Amenorrhea method (LAM), and withdrawal.
These methods all require the cooperation of the sexual partner, and generally speaking, a good awareness of the body and its natural rhythms and cycles.
The chart below indicates the efficacy of each method; more information on efficacy can be found on the pages for each natural method.
| Method | Use Effectiveness Actual Use | Theoretical Effectiveness Perfect Use |
|---|---|---|
| Fertility Awareness Method | 75% | 91-99% |
| Withdrawal | 73% | 96% |
| Abstinence | 100% | 100% |
| Lactational Awareness Method | 98-99.5% |
