Even though the pill can eventually make your periods shorter, lighter, and less painful, you might notice some irregular spotting before that happens. This most likely a normal side effect, so don’t worry!
Spotting, or breakthrough bleeding, is a common side effect of starting a new birth control, especially when you start a birth control method mid menstruation cycle. It’s more likely to occur from pills with low or no estrogen content. Estrogen functions to strengthen and stabilize the endometrium, the lining of the uterus, which sheds during your period. When there’s not enough estrogen in the body, you shed your endometrium little by little, causing breakthrough spotting rather than discrete periods. If you want to avoid spotting, try a birth control pill that’s higher in estrogen—over 25 mcg. Other hormonal birth control methods, such as the vaginal ring, hormonal patch, shot, implant, and mini-pill, are all progestin-only, estrogen-free methods, so they won’t be particularly helpful at preventing spotting.
Keep in mind that spotting, like other common side effects of hormonal birth control, should subside within three months. If you continue to experience spotting on birth control after this three month period, reach out to your doctor to make sure there isn’t a larger issue.
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