possibly pregnant

SOMEONE READ THIS AND LMK WHAT YOU THINK

so i had unprotected sex with my boyfriend a few hours ago and he finished in me, i went to the bathroom after and pushed out what felt like most of his semen and i’m taking a plan b early tomorrow morning. i’m not too worried but this is the first time it’s happened so i’m just scared there’s a slim chance i’ll get pregnant.

but at the same time i have a very unhealthy diet and eat very occasionally and consume a lot of nicotine and 🍃, i’m also always very stressed which ik can affect things that go on in your body, i was wondering if that makes my chances of getting pregnant lower?

it would mean a lot of someone could help:)