had an endometrial biopsy done last wed, spotted just a lil and on thursday night past 3 small clots , then after that i start bleeding a lil heavier , now im bleeding super heavy and passing clots , i know i was suspse to start my period yesterday or the day before that . i was just wondering is this normal ? my lower back is killing me and i still get cramps in pelvic area. also had pap come back abnormal , and high-risk hpv positive. all im just wondering is this normal or should i call my doctor ???? thank you .......2young