I have a regular 27-29 days cycle. And my period came on 29th August. Had unprotected sex with my boyfriend and took the morning after pill about 48 hours later. My period was supposed to end on 3rd Sept. I thought it ended but even till today (6 Sept) I've still been experiencing bleeding. Today it was a light flow but the day before it was heavy till I stained my panty liner. The copies of the blood ranges from red to brownish red (sorry if this is too much info). 

So I'm just really wondering - what are the chances of me being pregnant? The chances are quite low right? And it's just the pill screwing my hormones/body up? Please help :(