my bf and i had sex doggy style and he wanted to cum on my back and i’m worried that he came a little on the outside of my pussy. is there a high chance of me getting pregnant?

p.s. i know unprotected sex is highly risky as it is so please don’t reply telling me this or telling me to learn about the body first before i engage in sexual acts. i’m tired of these cliche answers on all my questions. are my chances of getting pregnant high or not.