scared

okay so i had sex with my boyfriend (literally for like two sec because we realized we should def get a condom because i am not on the pill) we know he did not ejaculate like in my vagina or anything but now my period is 4-5 days late. this was the only time we’ve had sex since my last period. i am getting really nervous because i am only 15 and can’t get a test. i don’t feel like i have been experiencing any early symptoms of pregnancy just sore/tender breasts which i usually get before my period anyway. i don’t know if i’m reading into this or not:(