so this is a long story but i'll make it short, i had protected sex, the condom broke, maybe a few drops of cum got inside me but nothing more than that, took plan b about 3-4 hours later, now i'm scared and freaking out because that was my first time having sex and i'm not on birth control because i never really planned on having sex, i had a 33% fertile rating that day (i was on my fertile week) and i'm extremely scared because i know people have unprotected sex and everything gets in them and plan b works for them but i'm so terrified, i'm 15 (please don't judge me)i just  need help and reassurance, i'm so scared