"earlier today i was just on this site reading review after review, worried sick about whether or not this worked. it did! this sounds dumb but we didn&#039;t technically have sex, but things got pretty serious so i of course got paranoid. i had missed a few days of my bc pill before this, and i started my period the day this happened. i took the pill around 40 hours later, and experienced no side effects. i also started a new pack of birth control the night i took plan b. i took 2 pregnancy tests today which were negative, and my period showed up a few hours ago (4 days late)"