Period and pregnancy what do you think?

i had unprocected then a week later i started to bleed it was really light and on and off for 6 days with hardlys no cramping but my period wasnt due for a nother week then i started to get cramps in my belly period feelings back ake headakes dizzyness and been very moody n tierd for a month now and about 2 weeks ago i started to get lots of clear/white discharge really bad,, it is round about the time i should be due on again but i havnt it is between the 4th and the 11th and i have had no sign of it coming yet coud i be pregnant