heyy. im sure no one is gonna judge u other ppl on here have made mistakes me bein one of them. but i dont think u could be pregnant. my share of mistakes were a few days b4 my period had sex no condom and n the other time was right after i got off it n i didnt get pregnant. the chances of gettin pregnant on ur period is low so im shure u have no worries

hope tht helps

I'm sure the tampon worked as a barrier method just like a diaphragm or condom do. I really don't see how you could have become pregnant if he didn't even put his penis inside you AND he didn't ejaculate.
Be safe.