6 days late and no sign of AF

I'm never late like this ever. I took a HPT day 2 of being late and came back with a BFN. Here I am 6 days past and don't want to take another test just for another negative to appear. Could I have ovulated late and that's why my period hasn't arrived yet or is there still a chance that I am pregnant. Need thoughts because I'm already discouraged with all the negative test results I'm getting.