Okay so im young and i had sex about three to four weeks ago. I didnt know if i was pregant or not. I started bleeding a few days ago and it lasted for only three days. It was heavier bleeding than i normally get during my period and it almost came to a stop after three days of heavy, non-stop bleeding, so now im just really worried and paranoid and I dont know if it was my actual period or if it was a very early miscarriage? Can someone please help me out!