am i tripping or is my period coming ?

hello everyone! I have been on birth control pills and from my last cycle I had my period and I had sex on the last day of my period. after i had sex I realized my partners condom tip had came off in me but he didn’t finished in me. does this mean I am pregnant? I have taken test and it has said not pregnant. and my period is due in 5 days. would I be pregnant or am I just nervous and scared? I’ve honestly haven’t had early pregnancy signs or symptoms. can someone please help?