17 year old girl in need of help!!

so my last period was on july 13th, i had sex on aug 2nd (the condom broke) and i took a plan b aug 3rd early in the morning my period was supposed to come aug 9 but today is the 10th and i still haven’t gotten it. also i took a plan b june 18 which i know its bad taking more than one a year but i got a period 5 days after the one on june 18 and this time i didn’t! so i don’t know if it’s because I’m pregnant or not. ps i can’t start bc until my next period arrives 😭