"i promised myself i would write a review after this whole ordeal was over so, here it goes. i had unprotected sex on day 12 of my cycle. upon realizing this, i rushed to the pharmacy to purchase plan b as i am not on any birth control. i didn&#039;t experience any side effects until day four when the extreme nausea, sore breasts and cramping began. ten days after taking the pill, i had what may or may not have been an extremely light period that lasted about a week. i still was experiencing all of the side effects, and at this point i was certain the bleeding was from implantation. i also developed extreme mood swings, and was convinced i was pregnant even though i had multiple negative pregnancy tests. bottom line, it worked but made me insane!"