Stupid question

So when I conceived my son it was on a day when I only had a 5% chance on becoming pregnant. I had sex with my boyfriend a few days ago three days in a row and all three times he came inside me, I figured it wasn’t a big deal because I’m projected to only have a 3% chance of pregnancy. But my question is if I got pregnant with only a 5% chance the first time do you think I will get pregnant with a 3% chance? Ik it sounds stupid but I’m curious. Please don’t be harsh, I am an adult, again I’m just a little curious.