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Fertility awareness methods may be used to avoid pregnancy, to achieve pregnancy, or as a way to monitor gynecological health. Methods of identifying infertile days have been known since antiquity, but scientific knowledge gained during the past century has increased the number, variety, and especially accuracy of methods.
Birth control, also known as contraception, anticonception, and fertility control, is the use of methods or devices to prevent pregnancy. [1] [2] Birth control has been used since ancient times, but effective and safe methods of birth control only became available in the 20th century. [3]
When used to avoid pregnancy, the standard days method has been estimated [22] to have perfect-use efficacy of 95% and typical-use efficacy of 88%. [ 20 ] [ 21 ] These figures are based on a 2002 study in Bolivia, Peru, and the Philippines of women of reproductive age having menstrual cycles between 26 and 32 days, [ 20 ] [ 23 ] : 505 and on a ...
With perfect use, Opill is 98% effective at preventing pregnancy — meaning, only 2 in 100 women will become pregnant while using Opill if they follow the directions perfectly.
A statistics and policy report, based on CDC data and published by Guttmacher Institute, shows that in 2014 72% of private and public high schools within the United States provided information on pregnancy prevention, and 76% taught that abstinence is "the most effective method to avoid pregnancy, HIV and other STIs."
The United Nations Population Fund (UNFPA) says that "Some 225 million women who want to avoid pregnancy are not using safe and effective family planning methods, for reasons ranging from lack of access to information or services to lack of support from their partners or communities."
Doctors are urging women to take contraception guidance from the social network “with a pinch of salt,” with videos related to the “rhythm method” viewed almost 1 billion times.
A condom is a barrier device made of latex or thin plastic film that is rolled onto an erect penis before intercourse and retains ejaculated semen, thereby preventing pregnancy. [47] Condoms are less effective at preventing pregnancy than vasectomy or modern methods of female contraception, with a real-world failure rate of 13%. [43]