What Is the Birth Control Patch?
The contraceptive patch is a small patch a woman can wear on her skin to keep her from getting pregnant. It sticks to the skin like a Band-Aid. The patch contains both estrogen and progestin. The hormones go slowly into the woman's body through her skin.
Each patch works for only 1 week. You wear 1 patch each week for 3 weeks. During the fourth week, you wear no patch at all. This is when you will get your period.
The patch works well to prevent pregnancy. But it does not protect against HIV and other STDs. If you have sex with anyone you think might give you a sexually transmitted infection, you should use a condom.