Hi 3 Or 4 Days Ago I Had Unproteted Sex

Hi 3 or 4 days ago i had unproteted sex with my fiance and 2 days after that at work i went to use the bathroom and noticed white milky discharge in my underwhere not alot but enough to notice it wasent itchy or smelly and last month after my pired ended i had sex my boobs felt sore and they still feel sore and lately i havent benable to drink my morning coffee makes me feel sick and i have slight cramping but my pired isnt due for 6-7 days, have i been pregnant sence last month or could i just be getting pregnant now if iam just geting now would i still get my pired in 6 days or no? Just need some advice .. Thanks so much :)