If i got bit by my dog on accident last monday and its monday today if he had rabies wouldnt it have killed him and should i be worried about rabies?

Odd question: Why would you wait a week to ask about a disease that can kill you ? Yes, rabid animals usually die within 4-5 days after inflicting a bite. Human incubation is usually much longer. Your local health department will know if there is any rabies in the region & what you should do after such a bite. If the dog had his shots it wouldn't be an issue.