Welcome to EmpowHER. According to NextChoice, The first one should be taken within 72 hours (3 days) of having unprotected sex, sexual attack, or a known or suspected contraceptive failure, and a study shows a greater effect when taken sooner1
The second one should be taken 12 hours after the first tablet is taken. You might want to wait until your period is due and take a pregnancy test or see your doctor.
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Hi Anon,
72 hours (3 days) of having unprotected sex, sexual attack, or a known or suspected contraceptive failure, and a study shows a greater effect when taken sooner1
Best,
Daisy
March 21, 2012 - 4:55amThis Comment
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