Was i about to have an orgasm?

hi i'm 16 years old and i know it's kinda gross but i tried fingering myself for the first time today. i herd about it on the internet and i wanted to see how felt. when i stated to do it for a few seconds my heart started pounding, i started breathing heavily, i continued to finger myself so much because it felt to good, i actually sighed once and when every i rubbed my finger against my cilt it tickled alot. i feel kinda guilty for doing it but was i about to have an orgasm?