help worried and on bc

so i’m on birth control been on it for about two years, everything is regular period and all but i haven’t had sex but precum could possibly have been near my vagina because of humping and stuff, but everytime i have sex i use a condom should i stress if only precum could have gotten near me and not actual cum, because my bf never cums in me or near me and im a little on edge so i need some advice thank you!