Chances Of Pregnancy From Precum? Girlfriend And I Were Fooling

Chances of pregnancy from precum? Girlfriend and I were fooling around and, during a round of intercourse, are afraid of having gotten pregnant via possible precum on shaft being rubbed on her “area”. Please note I was using a condom with spermicide and did not orgasm in it. We removed the condom (did not wash off spermicide) and she touched the shaft after spreading pc on it then proceeded to perform oral sex on me, touching the shaft then herself once. I had orgasmed once before but not inside of her. Please someone help.