sex on fertile window

my fertile window was from july 16th to 22nd and i had unprotected sex for 5mins on july 22nd, on which I had 35% (i think) chances of getting preg. and my period are due for aug 6th (in 4days). i dont "feel" pregnant but idk. i didn take the pill since i already took it once this year and i heard its not good to take it too many times a year and also cause we only did 10 strokes so i thought i would be u guys think i'll get my period? or were I wrong for not taking the pill? and also i dont know if he peed before we had sex