So my periods have always been heavy and painful. I started training for a half marathon about a month ago and thought that being more active might help. I'm currently on the nuvaring (have been for 2 years). This past period started heavy and painful like usual then just turned into a medium light painless flow. I thought "cool this is an improvement!" My period stopped after 7 days instead of 6 which is unusual. My boyfriend and I started getting frisky the night after and I started bleeding so heavily we had to stop. I bled for a few hours then it stopped again. We had sex the next night and I started bleeding again for a whole day. It started out bright red then was dark like the end of a period. I thought it was almost over this morning and I masturbated only externally. After I orgasmed there was cramping (which sometimes happens) and I went to the bathroom and it was like my period started again. Fresh bright red. So I basically feel like I'm on day 11 of my period. Anyone experience this? I'm calling the doc tomorrow but I want to hear what you guys think too.