Yes.
While I can see the argument for not testing because it might identify an asymptotic case which then means isolating and income loss etc- unless all of your contacts are also not testing, you might have to isolate anyway. You could pass it to a colleague who is testing regardless, will test positive and if the timeframe works out you'll have to isolate too.
I'd personally rather know, and hopefully minimise how many people I potentially pass it to.