i’m afraid that i’m pregnant and i’m terrified

i’ll start off with saying this. i don’t think i am, way too early to tell but the thought is TERRIFYING. for context, i (19F) met my online boyfriend (18M) in person for the first time last week. we had sex one time and he was wearing protection. he didn’t finish inside me or even on me. we did a lot of foreplay stuff, and oral, but nothing ever got anywhere near down there.

however, i am curious about the possibility of one instance. i had been using my hand to pleasure him and i dont even think he finished, but there was some precum. id say probably 15 minutes later with a completely dry hand, for less than a few seconds i put maybe an inch of my fingers inside myself then took them out. that was it.

i think we were safe enough but im a very paranoid person and want some more outside opinions / reassurance. don’t know if this is even the right place to ask about it but at the very least i need it off my chest.