Just 20 days after my last menstrual cycle, I am getting menstrual bleeding and cramps. The bleeding is not like the regular menstruation, its dark, thick, very less in quantity and occurs in spurts. I had taken an iPill 6 months ago after having unprotected sex due to which my cycle was delayed by 20 days and had faced hormonal imbalance. Is this bleeding related to that or is it normal?