I was having my periods regular and rite on time and then i started having sex at 18 and like in 7 months after my 1st time, i stop havin periods. and in 3 weeks i grained close to 70 pounds went from 120 to 200 in a 3 week time , i have no pain at all. sumtimes i can go to the bathroom and wipe there and it be like a lil blood on the tissue and that will last like 3 days and then no sign for another year or so.. :-|