Chances of pregnancy??

I want to have unprotected sex, even for a few minutes to see what its like, I’m not on birth control but what are the chances if I do it when

-im not ovulating / so on or straight after period ends

-he doesn’t cum in me/ pulls out

-he pees before sex(flushing sperm out)

Would these conditions decrease the chances of conceiving pretty much near 100%??

No stupid get on bc or use condom comments pls