I had a child 9 months ago. While breastfeeding , I had no periods, when I stopped I got a very heavy period that lasted 7 days, around the 5th day I was bleeding through a tampon every hour or earlier. My gyno advised, I should go to ER, it then stopped. They switched my birth control from mini pill to microgestin. Since being on microgestin for 3 months, I ve been having a period for 7 days, followed with inbetween bleeding that last from 5 days to now 8 days. Not just spotting, more like a light period. Which doctor do I see for this situation? Do you have any idea, what might be wrong?