hi. I has my "normal" period on time and it ended on may 23rd. I had sex that night and 2 nights later. Now, 6 days after that I had spotting and it nervous I may be pregnant. Well the spotting turned into a very heavy (much heavier than normal for me) period and has lasted now 3 days and doesn't seem to be lighting up. What could this be? Any comments/advice is appreciated. Thanks!