"i had unprotected sex on the last day of ovulation and my boyfriend told me the next morning that he didn&#039;t pull out so about approximately 12 to 14 hours later i went to cvs and got a plan b  and took it, the first week i didn&#039;t have much side effects but the second week before my period i had really bad cramps  i finally got my period four days ago, a day earlier  and i honestly wouldn&#039;t ever do this again and i have definitely learned my lesson, condoms &amp; birth control ladies, be safe.."