避孕

避孕方法：两性都适用的避孕方法

节欲
节制性行为是最明显的避免怀孕的方式。可是，人们始终没有认识到，为了达到避孕的目的，并不必定要完全节欲。当投入所有其他形式的性行为时，避免性交也能够避孕。最后需补充一点，正如“安全期避孕”所例举的那样，暂时的节欲也就足矣，只要性交不发生在女子的排卵期，难道在非排卵期也不能发生性交？由此看来，人们所谈及的避免怀孕的节制性行为可能有三种：1. 完全节欲；2.戒制性交；3.只在女子的排卵期戒制性交。

Contraception

Methods of Contraception: Contraceptive Methods for Either Sex

Abstinence
Sexual abstinence is the most obvious way of avoiding pregnancy. However, people do not always realize that the abstinence does not have to be total in order to achieve this goal. Pregnancy can also be avoided by abstaining from coitus while engaging in all other forms of sexual intercourse. Finally, as the “rhythm method” of contraception illustrates, temporary abstinence can be sufficient, and even coitus can be practiced as long as it does not take place on the woman’s fertile days. Therefore, one may speak of three kinds of sexual abstinence that avoid pregnancy: 1. Total abstinence, 2. abstinence from coitus, and 3. abstinence from coitus only during the woman’s fertile days.