LAte by one day

I’m worried.. I’m so emotional I keep crying because I don’t want to b pregnant . I had unprotected sex last Friday (August 24) but he never came at all , he only did the minimum of 7 strokes. And my period is suppose to start today but hasn’t came yet , I have sore breasts , fatigue and acne but no period. And my vagina is really dry , no type of moisture. And my fertile days were August 12-18, and 17 was the ovulation day . Should I be worried. Mind u I had sex out of my most fertile days