Nampa, ID
A 21-year-old female asked:
Im on birth control to regulate me, and missed quite a few pills n had sex the week i missed the most pills, 2day about 12days later spotting n cramps?
1 doctor answer • 2 doctors weighed in

Dr. Robert Kwokanswered
Pediatrics 34 years experience
Pills aren't working: Birth control pills are hormone pills that a woman takes each day. If taken correctly, the hormone pills interact with her natural hormones, to prevent ovulation. If "quite a few pills" were missed, then the hormones may be up one day and down the next, which means the pills aren't working (because they aren't being taken right). She can check a pregnancy test about 3 weeks after last sex.
4.8k viewsReviewed >2 years ago
Last updated Sep 28, 2016
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