Health Library
The Health Library is a collection of health and wellness resources created for learning and accessibility. Select a topic below for related health information or search for a topic in the search bar for more information on other medical conditions.
Birth Control Pills
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Birth control methods have high rates of effectiveness if they are used consistently. Follow your health professional's instructions on what to do if you miss or skip your birth control pills. Some general guidelines are listed here. Combination (estrogen plus progestin) birth control pills Always read...
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It is not unusual for women who are taking hormone pills for birth control to have very light periods or no bleeding at all. If you have not missed any pills, skip 1 period, yet have no other signs of early pregnancy, it is very unlikely that you are pregnant. Signs of early pregnancy include fatigue, breast...
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Birth control pills come in packs. The most common type has 3 weeks of hormone pills. Some packs have sugar pills for the fourth week. During that fourth no-hormone week, you have your menstrual period. After the fourth week (28 days), you start a new pack. Some birth control pills are packaged so that you take...
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What are combination pills? Combination pills are used to prevent pregnancy. Most people call them "the pill." Combination pills release a regular dose of two hormones, estrogen and progestin. They prevent pregnancy in a few ways. They thicken the mucus in the cervix. This makes it hard for sperm to travel into...
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Birth control—without it, pregnancy can happen. That's why you need birth control you can count on. There are lots of good options for birth control. Your best choices are those that you find easy to use—so you never go without it. And of course, no matter what kind of birth control you use, you always need a plan for...
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Birth control methods have high rates of effectiveness if they are used consistently. Follow your health professional's instructions on what to do if you miss or skip your birth control pills. Some general guidelines are listed here. Combination (estrogen plus progestin) birth control pills Always read...
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It is not unusual for women who are taking hormone pills for birth control to have very light periods or no bleeding at all. If you have not missed any pills, skip 1 period, yet have no other signs of early pregnancy, it is very unlikely that you are pregnant. Signs of early pregnancy include fatigue, breast...
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Birth control pills come in packs. The most common type has 3 weeks of hormone pills. Some packs have sugar pills for the fourth week. During that fourth no-hormone week, you have your menstrual period. After the fourth week (28 days), you start a new pack. Some birth control pills are packaged so that you take...
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In some women, the estrogen in combination hormonal birth control methods increases the risk of a blood clot in a leg ( deep vein thrombosis, or DVT) or a blood clot in a lung ( pulmonary embolism, or PE). A blood clot in a leg vein can travel through the circulation system and cause pulmonary embolism. The risk for...
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The following tables list some pros and cons of using hormonal birth control methods. Combination pills, skin patch, or vaginal ring (estrogen plus progestin) Pros Cons No interruption of foreplay or intercourse Reduced bleeding and cramping with periods, which lowers the risk of anemia Fewer or no...