How likely can you get pregnant on the last day of fertile window? Had sex, condom and pull out used. I don't think I might get pregnant from that but here's the thing,.

Before we started having sex and wear condom, we mess around, I started to put his duck in my v and never inserted it. We're just like fooling around, rubbing each others genitals. I'm worried about precum!! How likely could I get pregnant from this?? Especially i'm in my last day of fertile window!!!!