Cheapest: Well you don't have to spend any money on it whatsoever and that makes it the cheapest form of birth control. It can work well provided you have very regular, predictable cycles and that you are compliant with abstinence during your peak fertility times.
Answered 11/16/2017
6.4k views
Fertility awareness: As no method of contraception is perfect, each woman must balance the advantages of each method against the disadvantages and side effects, and decide which method she prefers. Surveys and behavioral research worldwide indicate that women who choose fertility awareness-based methods do so because of their concerns about side effects and health consequences of other contraceptive methods.
Answered 5/17/2018
326 views
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