Me and my bf has unprotected sex (sort of like not even 10 minutes because I got scared that there was no condom) and he didn’t finish or anything, he said he didn’t masturbate previously that day and the only thing that would be in me for a bit would be precum, same exact thing happened the next day (but stopped because got scared again) and then I took plan B the morning after the second occasion. What would be the chance I’m pregnant if he didn’t cum in me at all AND I took plan b??