Hi I Used Postinor 2 With Ciproflaxin After I Did

Hi i used postinor 2 with ciproflaxin after I did a pt test and it was positive I started sporting hours later till the next day and the second day the bleeding bacame heavy and clots with something like tissue with cramps i had unprotected sex 3 wks ago is it miscarriage or normal menstration , could it be the drugs combined that caused it