Birth control pills are a kind of medication that women can take daily to prevent pregnancy. They are also sometimes called “the pill” or oral contraception. This animated video gives a proper explanation of the ovulation process and explains about the birth control pills. The most common of the birth control pills contains estrogen and progestin; and also how these pills avoid the production of egg which stops ovulation.
Progestin-Only or "Mini-Pills"
Mini-pills contain only the hormone progestin, rather than estrogen. Estrogen gets into breast milk, so this pill is a good choice for breast-feeding moms. The mini-pill must be taken at the same time every day, and users may also notice breakthrough bleeding. Mini-pills may also be prescribed to women who have medical problems that prevent them from taking estrogen.
Combination Pills
Most pills contain both estrogen and progestin, and these are called combination pills. It's important to note that the modern estrogen dose is much lower than the older pills. Combination pills are available in monophasic, biphasic, and triphasic. Monophasic pills contain the same level of hormones. Biphasic pills contain two different levels of progestin and estrogen. Triphasic pills have three different levels that change every seven days. Many women and many physicians prefer monophasic pills because hormone levels remain consistent, but biphasic and triphasic oral contraceptives are equally effective.
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