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Various methods are known as the Knaus–Ogino method and the rhythm method. The standard days method is also considered a calendar-based method, because when using it, a woman tracks the days of her menstrual cycle without observing her physical fertility signs. The standard days method is based on a fixed formula taking into consideration the ...
Calendar-based methods [29] The rhythm method, Knaus-Ogino method, Standard Days method: no data: 5 (1 in 20) Behavioral: Calendar-based: Daily: Plastic contraceptive sponge with spermicide used by parous [38] [note 5] Today sponge, the sponge: 27 (1 in 3.7) 20 (1 in 4) Barrier & spermicide: Vaginal insertion: Every act of intercourse ...
The Calendar-Rhythm method is also considered a calendar-based method, though it is not well defined and has many different meanings to different people. Systems of fertility awareness may be referred to as fertility awareness–based methods; [ 5 ] the term Fertility Awareness Method (FAM) refers specifically to the system taught by Toni Weschler.
Typical use of this method is associated with a pregnancy rate of 1 to 22%. [1] A World Health Organization study found that 15% is caused by a conscious departure from method rules. [1] The percentage of people who stop using the method after a year is 1–24%. [1] Perfect use has been estimated to result in pregnancy in 0.5–3%.
When BBT alone is used to avoid a pregnancy, it is sometimes called the Temperature Rhythm method. [ 4 ] Basal body temperature alone is most effective at preventing pregnancy if the couple abstains from intercourse from the beginning of menstruation through the third day after the basal body temperature has risen. [ 5 ]
For avoiding pregnancy, the perfect-use failure rate of Creighton was 0.5%, which means that for each year that 1,000 couples using this method perfectly, that there are 5 unintended pregnancies. The typical-use failure rate, representing the fraction of couples using this method that actually had an unintended pregnancy, is reported as 3.2% ...
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A CycleBeads birth control chain, used for a rough estimate of fertility based on days since menstruation. CycleBeads is a visual tool that was developed by the Institute for Reproductive Health at Georgetown University. This device helps women use the Standard Days Method, a fertility awareness-based family planning method.