I was late this time by 12-13 days. After that I got my periods on last Sunday 6 nov. But for first 2 days, they were extremely light only with only very light spotting. Afterwards some blood clots were observed. And now 16 Nov the period still hasn't stop though flow is light. Can you suggest if it's normal. I am sexually inactive. Had taken primolut n in August but Sep periods were normal .I have always been very regular. This is the first time.