Was your next period very early? My cycles are usually 4-5 weeks and now I have my period at only 3 weeks. I was supposed to switch to a birth control pill but there was a mixup at my doctor's office and the prescription was not called in. Now I decided to do a break from hormones, probably for 2 months or so but I will be very eager to go back b/c it controls my period symptoms. (For my wiseguy friends who may want to tease me, I don't think this could be implantation bleeding!).