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Several types of birth control exist, all of which work by preventing the onset of pregnancy, which begins when a fertilized egg implants in the uterine lining. According to the U.S. Department of Health, different metho... More »

www.reference.com Health Women's Health Birth Control

Birth control methods like traditional condoms, female condoms, spermicide and emergency contraceptive are available without prescription. Some methods, including emergency contraceptive pills, require that the purchaser... More »

www.reference.com Health Women's Health Birth Control

Drugs.com states that penicillin sometimes makes birth control pills less effective, which may result in unexpected pregnancy. A backup method of birth control is recommended. More »

www.reference.com Health Women's Health Birth Control
similar articles

Different types of birth control include barrier methods, such as male and female condoms and contraceptive sponges, and hormonal methods, such as birth control pills, vaginal rings and implantable rods. Intrauterine dev... More »

www.reference.com Health Women's Health Birth Control

Different categories of birth control for women include barrier methods, hormonal methods, implantable devices and permanent solutions, explains the Office on Women's Health. Examples of barrier methods are female condom... More »

www.reference.com Health Women's Health Birth Control

In the calendar or fertility awareness method of birth control, women tracks their menstrual cycles to determine on which days they are fertile and therefore at the highest risk for pregnancy. The calendar method is gene... More »

www.reference.com Health Women's Health Birth Control

Women who start taking birth control and then stop are more at risk for pregnancy due to the inconsistent nature of how hormones in the pill are administered, according to the Center for Young Women's Health. The pill, w... More »

www.reference.com Health Women's Health Birth Control