hi, on the 16th of august i had what was meant to be protective sex (condom) however there is a moderate chance that there was pre-cum/semen to vagina contact, 2 days later i received my regular, heavy 5 day period. in the past 2 weeks i ve been waking up feeling nauseous, over-heated, dizzy and become bloated and had heavy food cravings and binges; my normal period is due to start in 4 days and i ve began to feel the general cramps and mood swings but i m wondering if i could still be pregnant due to the symptoms described despite having recieved my period 2 days after the intercourse?