(TMI) so I had sex 2 weeks ago and I haven't had a period since December. I'm really irregular. I dont know  when my periods should start or anything I didn't use protection and today I started bleeding lightly it's a pinkish color. My periods are always superrr  heavy so I'm confused. Could it be implantation?? BTW sorry for the picture but it's never happened before my period. So is it my period or sign of early pregnancy?