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Birth Control Learning Center
Birth control prevents pregnancy by stopping different parts of the pregnancy process. Hormonal methods—like birth control pills, the patch or injections—release synthetic hormones into the body to prevent the release of eggs during ovulation... More »

www.plannedparenthood.org/learn/birth-control/birth-control-pill/how-effective-is-the-birth-control-pill

When taken every single day, the pill is great at preventing pregnancy. Missing pills, taking certain medications & other things may make it less effective.

www.plannedparenthood.org/learn/birth-control

So, ready to stop worrying about pregnancy? We're here to help you figure it all out. Birth Control Implant. The implant is 99% effective. It doesn't protect you from  ...

www.plannedparenthood.org/learn/birth-control/birth-control-pill

Birth control pills are a medicine with hormones that you take every day to prevent pregnancy. The pill is safe, affordable & effective when used correctly.

www.webmd.com/sex/birth-control/birth-control-pills

Aug 12, 2016 ... WebMD provides an overview of birth control pills and how they're used to ... pregnancy, and, when taken correctly, it is up to 99.9% effective.

kidshealth.org/en/teens/bc-chart.html

Some birth control methods work better than others. The chart on the following page compares how well different birth control methods work. The most effective  ...

www.bedsider.org/questions/161-how-effective-is-the-pill-at-preventing-pregnancy

The pill's effectiveness depends on how consistently someone takes it. When used perfectly, the pill is more than 99% effective. But most of us aren't perfect, ...

www.cosmopolitan.com/sex-love/advice/g3143/how-effective-is-birth-control

Nov 11, 2015 ... Among the many options you have when it comes to sex—from fancy lube to flavored condoms to crazy positions—choosing the right birth ...

www.hhs.gov/opa/pregnancy-prevention/hormonal-methods/birth-control-pills/index.html

The risk of pregnancy is lower in women who take birth control pills ... medications, and supplements (such as St. John's Wort) may make the pill less effective.

www.optionsforsexualhealth.org/birth-control-pregnancy/birth-control-options/effectiveness

Safe, affordable and effective. There are many types of contraceptives available today to allow individuals to choose the type of birth control that best fits their ...