I started birth control last Sunday. The package said use backup protection for the first 7 days. On Friday, my boyfriend and I were screwing around but had no condoms. He kept asking to bareback and I said no multiple times. Just to be cheeky he slid the tip of his dick in me. I immediately stood up, got dressed and left. I was supposed to be ovulating, but I am scared about pregnancy from precum. My next period is supposed to start in about two and a half weeks. What are my chances of pregnancy?

~i have no access to a pregnancy test