I think that depends on what you mean by "having it". Does having any amount of the covid-19 virus flowing through your body automatically mean you have it? Because the amount of the virus you have been exposed to is an important factor in whether or not you are impacted by it. Also if you aren't impacted at all, but had what basically amounts to a microdose of the virus did you have covid?

It would be good to know what the medical definition is for this. I don't actually know personally.