I’m sixteen and my period has been longer than a week. This is the first time. My cycle is the typical 28 days, it might be two days early or late but it’s always around the time it’s expected. I’m sexually active but I’ve never had vaginal sex and I’ve been in a serious relationship for over a year and we were both virgins when we got together. Should I just wait till next month to see if it repeats itself or goes back to normal or should I see a healthcare provider?