this month my period was odd, the first day was kinda 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 ?

Have you taken a pregnancy test? Sounds like you could be! Basal body temperature rises both when you ovulate and when you get pregnant. Progesterone causes this. Both ovulation and pregnancy cause an increased level of progesterone in your body. I would take a test!

take a pregnancy test. it is common that in the first month of pregnancy you can get what is called an implantation bleed which happens around the same time that your period would of been due, all this is is the egg imbedding into the lining of the womb. also as you have not been feeling well this could indicate pregnancy. good luck!