Am i pregnant? or is body playing games?

Im due on period monday 30th october and had intercourse on correct ovulation time.

i have had on/off symptoms nothing too serious. my boobs, period pains , 1 specle of blood on tissue – 11 days b4 my period due date.

is my body playing games or could i be?

im not urinating , nauseous <—-although iv felt it a couple of times but its gone now!