Pill These are great for pregnancy prevention if used properly. If you want to use the pill right, you need to take the pill every day. It is most effective if taken at the same time everyday. Each pill pack is 28 days. You will bleed during days 21-28.
Pills can be a combination of estrogen and progesterone or progesterone only.
There are monophasic pills. This means that you get the same dose of estrogen and progesterone every day. These pills have different amounts of estrogen and progesterone. The mini-pill is a progesterone only pill. Side effects of pills include weight gain, nausea, and headaches.