Chance I could be pregnant ?

According to the glow cycle and regular bc I'm a 28 day cycle I haven't used my bc for this month. My first day of my last period was October 1st. My so and I had sex all throughout my ovulation time (according to glow) he did not cum inside but all around the opening . Yes some could have gotten in.  I haven't had any signs of my period comig and have my regular  cm amount. I've been getting dizzy spells. Is there a chance of pregnancy? 
(Not worried about it just curious)