ANXIETY OR PREGNANT

Hey guys! I hooked up with a mutual friend about 5 days ago and we used a condom at first then he took it off because he said it broke (he hadn't cum yet though) so we just had sex and then he finished on my stomach, not even inside of me. I am on the pill and have been for at least two year, though I very rarely have sex, I just use it as a back up. The last few days I've felt weird and idk if it's just in my head and my anxiety has taken over or if I'm actually pregnant! I keep feeling things in my stomach and I feel bloated but honestly it could just be gas right? Im not supposed to start my period for another two weeks so I have a lot of agony waiting. Any words of wisdom, or peace? Lol THANKS GIRLIES!