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  2. Calendar-based contraceptive methods - Wikipedia

    en.wikipedia.org/wiki/Calendar-based...

    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 ...

  3. Comparison of birth control methods - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_birth...

    The failure rate of a copper IUD is approximately 0.8% and can prevent pregnancy for up to 10 years. The hormonal IUD (also known as levonorgestrel intrauterine system or LNg IUD) releases a small amount of the hormone called progestin that can prevent pregnancy for 3–8 years with a failure rate of 0.1-0.4%. [1]

  4. Birth control - Wikipedia

    en.wikipedia.org/wiki/Birth_control

    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]

  5. The most common birth control methods and how effective they ...

    www.aol.com/lifestyle/most-common-birth-control...

    800-290-4726 more ways to reach us. Sign in. Mail. 24/7 Help. ... The ring is placed in the vagina and releases estrogen and progestin to prevent pregnancy. (Getty Images) (viti via Getty Images)

  6. Diaphragm (birth control) - Wikipedia

    en.wikipedia.org/wiki/Diaphragm_(birth_control)

    Diaphragms should be re-fitted after a weight change of 4.5 kg (10 lb) or more. [12] The traditional clinical guideline is that a decrease in weight may cause a woman to need a larger size, although the strength of this relationship has been questioned. [38] Diaphragms should also be re-fitted after any pregnancy of 14 weeks or longer. [10]

  7. Fertility awareness - Wikipedia

    en.wikipedia.org/wiki/Fertility_awareness

    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.

  8. Emergency contraception sales spike after New Year's ... - AOL

    www.aol.com/lifestyle/emergency-contraception...

    Copper IUDs should be inserted within five days of unprotected sex and are more than 99% effective in preventing pregnancy, according to the World Health Organization. Emergency contraceptive ...

  9. Hormonal contraception - Wikipedia

    en.wikipedia.org/wiki/Hormonal_contraception

    It works in 3 ways: 1. Prevents ovulation- usually an egg does not mature 2. thickens cervical mucus so to prevent sperm from reaching the egg 3. If those 2 fail, the last is the progesterone causes the lining of the uterus to be too thin for implantation.

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