A 17-year-old female asked:
Perfect user of ortho tri cyclen (ethinyl estradiol and norgestimate) lo missed period this month, didn't have sex this month. how does bc make u miss a period?
1 doctor answer • 1 doctor weighed in
Internal Medicine and Pediatrics 12 years experience
Uterine lining: A period is when the uterine lining that built up for possible egg implantation is lost when a pregnancy does not occur. Some birth control pills not allow the lining to build, some force it to be lost.
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3.7k viewsAnswered >2 years ago
Last updated Sep 26, 2014
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