Im turning 17 this sep. Im bleeding for 10 days now. At first i can only full a panty liner a day but now i can full a napkin a day. I went to the ob gyne and she said i should have an ultrasound, it might be polyps or multicyctic but that time my bleeding is not yet as heavy as now. What might be the possible cause? Btw i will have an ultrasound tomorrow.