I had sex on 14th august of which I was supposed to ovulate on 15th august. Then on 15th I took emergence contraceptive. Then on 23rd, I observed some slight bleeding. On 24th, the bleeding became too much with allot of backpain and slight clots in it. It lasted for 3 days, i.e from 24th-26th of august. Then on 27th, the blood reduced and mostly could just be spotted when I go to the toilet. Even on 28th, the same thing. Then today, I decided to take a pregnant test and it came out positive, why should it be and why did that blood come out in the first place. My periods are supposed to start tomorrow normally if I did not take the contraceptive pill.