Chances?

My period is projected to start in 6 days. My cycle is about 28 days long. I had sex 12 days ago (the 8th) and the condom broke. We stopped as soon as we noticed. He didn’t finish and there was spermicide in the condom but I’m still worried about pre cum. According to eve the 8th was the 2nd day of my fertile window. I didn’t take a plan B. What are my chances of getting pregnant.