Hi Doctor, I am 26 years old girl, I had unprotected sexual intercourse with my partner on 28th October, after which I took an iPill tablet within next two-three hours, I started bleeding after some days(after around 8-10 days, which I guess was due to iPill). On 8th December, my periods started, and today it is 17th December but still periods are going on. From last three days the blood color is dark black, can you please let me know if this is a matter to worry ? Thanks.