2 faint lines then no lines?

[Theyhaveallbeenused2]

Tested my Ds this morning and a faint line appeared. Tested again an hour later same thing, faint line appeared.
Tested again this afternoon out of curiosity to see if the line would be more prominent. Has this happened to anyone before?

Was this on flowflex? My DS often gets faint lines on those, we try to use another brand now.
He got his first real positive today and it wasn't at all faint.

Its orient genes. Was definitely a faint line was noticeable next to my negative from same box.

Hi, yes that happened to me. I got two very faint lines on Tuesday, then a negative on Wednesday. I then went for a PCR on Wednesday and it was positive. Thursday I got a faint line on LFT again. I’m curious whether I’ll ever get a strong line!

Dh has had 2 feint lines on flow flex, negative on his work one (can’t remember the brand) & as he was feeling unwell followed up by pcr which was negative.