What’s the probability??

So I had sex 3 times in 2 days with my boyfriend l, I’m not on any contraception but he withdrew when he was about to cum (please don’t grill me on this one, I know there is such thing as pre cum)

My question is what is the probability of getting pregnant I’m in my fertile 5 days at the moment (I also have PCOS but periods are generally between 26-32 days)