I've been stressing myself out since I lost my virginity on January 6, 2017. I've gotten 3 periods since than and 5 negative pregnancy tests. My periods have gotten lighter ( TMI, I still pass a few clots) there's maybe one heavy day in between two light days. I felt mild cramps each time. It's just weird because I have gotten these periods on a 26 day cycle each month. They're just not the same as before I had sex... could it be stress? What do you guys think?