I need some feedback.. I had my regular period for the month of Sept 14-19 wasn't supposed to come down again till somewhere around OCt 14-16 instead it came down almost 15 days later again Oct 3 till the 7 what felt like another regular 4-5 day bloody period but notice heavier cramping. Had plenty of unprotected sex with my partner these past two weeks now I'm 5 days late on my current period due.(oct30) All test have been negative !!! What could this be I have no symptoms of neither period or pregnancy. I wouldn't know either way I don't have kids... Anyone help??