17 y/o pregnancy scare

I'm 17F and I met with my boyfriend a few days ago. We dry humped, I had my panties on he also had his underwear on. I made him cum 2 times, but his cum never came into contact with my vaginal area, only on my thighs and arms. I didn't think much about it, but then 2 days later I started spotting, and it made me so worried because I had never spotted before. I searched up why I was spotting and the first thing that came up was early pregnancy, and I got so scared!!! Literally couldn't sleep that night even tho I know pregnancy isn't possible this way. My mind now constantly fixates on even the tiniest feelings in my body, thinking that it might be a sign of pregnancy(once again, even if I know pregnancy isn't possible). What makes it worse is that I was ovulating when we dry humped and that just made my anxiety worse.

Apologies, I am just extremely terrified of pregnancy (let alone teen pregnancy) and I'm someone who strongly believes in karma. Like, my mind thinks that even if no penetration happened, the fact that I committed sexual acts at this age means that some terrifying consequences will happen. Perhaps one of them being pregnancy. Everytime I do anything seuxal with my boyfriend I feel so utterly guilty, like I just broke all the values I hold close to myself. Yet, we "relapse" really often because I'm not good enough at controlling my sexual desires. But also, biologically it's just not possible for pregnancy to happen this way, right?

Im just waiting for my period to come in the next 2 weeks. I know, I know, it's not possible to be pregnant, but my mind won't stop thinking about it. I need reassurance.