Oral contraceptives are medicines used to prevent pregnancy These medicines also are called birth control pills When you use it for birth control, progestin works by preventing ovulation (when your ovaries release an egg) and changing your cervical mucus to make it harder for sperm to reach an egg. No evidence was found regarding the effects of missed norethindrone or norgestrel pops available in the united states on measures of contraceptive effectiveness including pregnancy, follicular development, hormone levels, or cervical mucus quality It can affect periods in different ways Your periods may be lighter, more frequent or may stop altogether
You may get some bleeding (spotting) between periods Some people may get acne, mood swings, weight gain or changes to sex drive. Progestin is a female hormone It works by preventing the release of eggs from the ovaries (ovulation) and changing the cervical mucus and the lining of the uterus The most common progesterone mini pill side effects include headache, nausea, acne, vomiting, irregular bleeding, hair thinning, mood fluctuations, weight gain or loss, changes in libido and ovarian cysts
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