BFPs that faded ?? I am over this..

So a day ago i got three faint Bfps. Then after 10 mins they faded out to squinters.. they weren’t dark dark. Appeared within a minute of taking the test and faded after about 10 mins.

Took another this morning with FMU, and it was darker then yesterdays but then it faded again after 10 mins ! It was a clear pink line (these aren’t from the same box)

I can still see it, and it’s not a squinter but not at all as dark as it was when i took it.

It popped up within a minute and is pink..

Could this be a chemical?? Or false positives :( this has never happened to me before..

Before

After 10-15 mins