Hello, Thanks for letting us know your health concern. In the current scenario, you seem to have experienced withdrawal bleeding after using the emergency contraceptive pill. Subsequent scanty menstrual flow with altered color of the discharge is due perhaps to hormone imbalance created by using the emergency contraceptive pill. I would ask you to get a proper clinical appraisal, a sonogram of the pelvis preferably in the trans-vaginal route, to clarify. Further management can be planned accordingly. Hope this helps.