A 31-year-old member asked:
how soon does the ocp "mircette" become effective?
1 doctor answer • 2 doctors weighed in
Fertility Medicine 38 years experience
Depends: All birth control pills can be effective in the first cycle of taking them if they are started before the 4th day of the menstrual cycle. To be doubly sure use alternate contraception for 1 month while starting the pill.
Last updated Sep 3, 2015
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