ok. my periods are irregular. sometimes i skip 1month. but i just got my period on dec 8th. on the 2nd or 3rd day i had unprotected sex w/my fiance. the next day it stopped. then a couple more days after i started spotting then 2weeks later it was heavy. im still bleeding heavy(blood clots) to this day & its now jan 4th. this has never happened to me. im not having any pain. i also notice a dark line on my tummy that runs from my naval to my area below.my breast have also gotten bigger but were only sore for about 2weeks. im sure whats happening to me. could i be pregnant or could i be miscarrying?