Mestrual Bleeding & Clot Queries

Hi, I just wanna ask advices on what to do regarding my menstruation. Usually my menstruation would take 5-7 days on a regular cycle. However, this month, I took pills (micropil) in the middle of my cycle (June 6, 2020 and my last menstruation was from May 16 to May 20, 2020). This month my mens landed on the 13th of June. However, it was more like a dirt-like color blood. It was not painful, I never had muscle cramps. Everything is okay until June 17, 2020, I had heavy flow. At first I thought it was just a normal mentruation until I had to use 2 pads at a time for like every after 3 to 4 hours. The blood was heavy and with clots. And I had the same flow everyday up until now June 22, 2020. I took vitamins with iron yesterday since I get nervous as to why I had this heavy flow with clots. Thankfully, I'm not feeling unwell at all aside from the nervous and the little dizziness I felt everytime I get up. I hope you could help me.