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"Almost a quarter of women switch contraceptives at least once a year. Some go for months in between without using any birth control at all, leaving themselves vulnerable to pregnancy. &amp;amp;#8220;That&amp;amp;#8217;s why it&amp;amp;#8217;s crucial to find a method that really works for you&amp;amp;#8212;one you can stick with,&amp;amp;#8221; says ob-gyn David Plourd, M.D. Use this quiz to narrow down your choices, then call your doctor. Start here &amp;amp;gt; Are you monogamous? Do you have sex at least once a week? CONDOMS Use condoms every time you have sex to help block STDs. &amp;amp;#8220;But they are only 85 percent effective against pregnancy, so I suggest you also use another method,&amp;amp;#8221; says Dr. Plourd. Do you often forget your birth control? Have you had a baby? Do you want a baby in the next three to five years? THE PILL Oral contraceptives are more than 99 percent effective if you never miss a dose&amp;amp;#8212;92 percent if you slip up. Don&amp;amp;#8217;t like using hormones? See Sponge and IUD. THE SPONGE It&amp;amp;#8217;s just 84 to 91 percent effective (68 percent if you have had a baby). So choose it for on-the-spot protection only if an unplanned pregnancy wouldn&amp;amp;#8217;t be devastating, says Dr. Plourd. PATCH, RING &amp;amp; SHOT Three methods that can reduce birth control slipups: The Patch, which you replace weekly, is 92 to 99 percent effective; same goes for the NuvaRing (right), which you insert in your vagina and replace monthly; the DepoProvera shot, which you get from your M.D. four times a year, is 97 percent effective. IUD &amp;amp; IMPLANT The nonhormonal ParaGard IUD lasts 10 years; the hormone-releasing Mirena IUD (right), five; Implanon, a hormonal rod placed under the skin, three. All are more than 99 percent effective."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.glamour.com/health-fitness/2007/10/the-right-birth-control/2>