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Holly B. Shulman is an American statistician in the Division of Reproductive Health of the Centers for Disease Control and Prevention (CDC), a developer of the Pregnancy Risk Assessment Monitoring System for the CDC, [1] and the former president of the Caucus for Women in Statistics. [2]
When examining reasons why women do not use birth control, a 2007 Pregnancy Risk Monitoring Assessment System (PRAMS) survey of over 8000 women with a recent unintended pregnancy found that 33% felt they could not get pregnant at the time of conception, 30% did not mind if they got pregnant, 22% stated their partner did not want to use ...
This system was a main form of birth control available to Catholic couples for several decades, until the popularization of symptoms-based fertility awareness methods. A new development in calendar-based methods occurred in 2002, when Georgetown University introduced the Standard Days Method. The Standard Days Method is promoted in conjunction ...
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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]
Combined hormonal contraception (CHC), or combined birth control, is a form of hormonal contraception which combines both an estrogen and a progestogen in varying formulations. [ 1 ] [ 2 ] The different types available include the pill , the patch and the vaginal ring , which are all widely available, [ 3 ] and an injection , which is available ...
Impacts on menstruation may decrease over the lifespan of the IUD, but spotting between menstruation may become more frequent over time. For some users, these side effects lead them to discontinue use. [23] The most common side effect of the contraceptive implant is irregular bleeding, which includes both reduced and increased levels of ...