This Girl Came Over To Have Sex...I Masturbated Before And

This girl came over to have sex...I masturbated before and I cum on my stomach I wiped it off in my boxers....she came by about 4-5 hours after....she gave me oral then I placed on a confirm but it was the wrong side so I flipped it...and only the tip of my penis went it...I'm afraid she could get pregnant if sperm was on the outside of the condom...it was the 23rd day of her 28 day cycle