It depends the purpose of getting tested if you are symptomatic, not being diligent in social distancing and wearing 100% a mask out in public and have been exposed to someone who now is positive for covid19 or recently been out of the country.
I have had 4 covid19 tests since the last of May because it was required prior to be ECV. The last Monday. It’s good for 5 days. I am high risk and been in isolation since March 16 except when I leave home to be tested or am ECV, but it doesn’t matter, I still need it. The hospital doesn’t trust the instant test so it’s a two day ordeal of dodging in the hospital those not compliant in mask and distancing.
I can easily locally get a faster antibody test but the hospital doesn’t accept it.
Different views say if one has antibodies it doesn’t guarantee one won’t get it again, and there are those who get it a second time.
My daughter’s friends who are seeking nannies are requiring the antibody test. I’m not confident being tested positive in having antibodies will safeguard my daughter’s friends kids.