Heavy Bleeding!!

The ending of May I really thought I could possibly be pregnant; well, I didn't have many symptoms jus extremely sore breast for about a week, fatigue, n dizziness... May 31st I started bleeding. From that point up to today I've been bleeding heavily ever since n so, I completely wiped out any notion of me being pregnant... but tonight (June 8) I've gotten quite dizzy again, sore breasts all over again, light cramping n the bleeding is beginning to calm down... someone was telling me that there cld still be a possibility of me being pregnant or maybe miscarriage, but idk, anyone else experience anything like this??