Cats often hide close by. Check with all your neighbors, around the block & across the street. Knock on doors, and/or distribute notes or fliers with picture & contact info (I taped them to front doors). Last year my old cat went missing for 10 days; turns out she was trapped in a neighbor’s garage only two doors away! Your pet is very likely nearby. Also, keep checking with nearby vets, and your local shelters. Best of luck.