Scared I'm Pregnant

I feel very stupid posting this. Im 18 and had sex a lot about two weeks ago. All using the pull out method. He'd cum and wipe himself off and we'd keep going. None of it got in me but I'm still very scared. I didn't have money for plan b and Ik it was very irresponsible of me since my mom had me at 17 bc of precum. Idk what to do but my period is supposed to come in a little less than a week. I've been very stressed but no symptoms of pregnancy. Everyone's telling me I'll be fine and not to worry and I'm not pregnant but Idk. I'm terrified.