I have had 2 covad antibody test both came back negative what does this all mean?

Never had it: An antibody test is used to detect the bodies response to a prior exposure by a specific germ. If you tested negative 2 times, it means you were not exposed, never had it or the tests were mistaken.

Likely possibilities: 1. You were never infected with SARS Co-V-2 the causative agent of Covid-19. This is the most likely explanation. 2. You were infected but did not make detectable antibodies. 3, The tests were flawed.