Suggest Remedy For Delay In Periods

HI,I had protected sex on 20th of july which was last sunday, I then took a morning after pill right after. I now I have a slight fever of 38.3 degrees celsius. If I am correct I took the morning after pill at minimum a week before my period. My question is What are the chances that I am pregnant I have still not received my period yet. Which comes to my second question. How late would my period be? I usually have a 6 day period.