you have a high risk of getting pregnant by him pulling out. it happens to girls ALL THE TIME. its not slight.
you taking a bath has nothing to do with you getting rpegnant or not
you can take plan b asap
There's a slight possibility that you can get pregnant. There's sperm that can leak out before ejaculation (known as "pre-ejaculate"). If you miss your next cycle, I would suggest getting a pregnancy test.