In the past month I've taken plan b pills twice and I have been menstruating a lot. The first cycle cane on time and lasted 5-6 days which is the norm for me but after a week if the end of my first period I started my periods again. It seemed like a normal period initially but after that I haven't stopped bleeding. It has been 11 days since the start of this menstruation cycle. I am not bleeding heavily, don't need to use tampon/pad/cup but whenever I check i see that I'm still bleeding a little. What can be done