Pull out method? what are the chances?

me and my girlfriend engaged on intercourse which will never happend again. we realize it was a terrible idea at this age.


however, for the five seconds we did it before we realized it was dumb, i was unprotected.

she had given me oral before so i would say most of the precum was gone, and i pulled out and ejaculated about 3 seconds after i had pulled out.

what are the chances?