"i took this for about a year and a half. i did only have one period every 3 months, but for me it was 3 months worth of period compressed into one week of hell. one week every 3 months i could barely get to class, and when i did i was constantly going to the bathroom between classes to change pads/tampons. it also made me very emotional for about 2 of the 3 months. overall, it did do what it promised: not becoming pregnant, and only one period every three months. however, i did not experience lighter periods."