Two negative LFTs then a positive: help!

[scarfandhat]

Had Covid this past week. Positive LFT at the end of last week, then negative tests on day 5 and 6 so stopped isolating. Stupidly did another LFT the next day and it was faintly positive. What does it mean?!

It means you should be wasting tests unnecessarily! Why did you test again as not needed?

I agree, it’s a waste.

I know it was a waste. Did it without thinking as the rest of the family were doing theirs. But hadn't expected it to be positive after two negatives.