This month my period was odd, the first day was kind of normal - but the next day it was very light almost just spotting, and the 3-5 was just spotting everyday lighter then the day before I saw a few brown spots as well, and this took place when my period should have, I had intercourse 3 or 4 days before I started and the first day I stared I haven't been under any stress, I have not been feeling well at all the lately I'm tried and my body temperature feels hot but I have no fever, I have never in my life time had a short or light period what do you think is going on ?