I'm 24 turning 25. My periods have always been normal, I just got my period on May 27 it ended on June 2nd, on June 8th I started having brown spotting up until today June 11th, today it's dark red clots I've been cramping and having lower back aches, I don't what's going on, but we have been tracking my ovulation days , trying for number3, could it be implantation bleeding?