HELP? As I pregnant ?!!!

On oct 24 I had sex, protected but I was afraid the condom broke so I took a plan b the next day. Plan b says that it might come early my period and it did , it came on the 7 but regularly it was suppose to come the 10-11 it was 14 days later after sex right ? Could it be my regular period or implantation? It was red and had clots (4 days long) my period was ending I had brown discharge and some pink ? Ive been having symptoms now (December 1) could it be the stress I have because I might be pregnant ? I’m really paranoid ( I also had sex on nov 2 and 3)