"i took this pill approximately 8 hours after my husband and i had intercourse. after missing my period i thought no way! i can&#039;t be pregnant maybe my periods are just thrown off.. the other day i purchased a pregnancy test just to be sure and it was a big fat positive!!! ladies please be careful taking this pill. i&#039;ve taken &quot;plan b&quot; in the past and had great luck but this one definitely doesn&#039;t compare.. use with caution."