Test from today has gotten thicker and more blue…

[YourTealBiscuit]

I took this test today and came back later hoping there would be a change and the line seems to have gotten thicker and more blue what could this mean please?

It means nothing. It's invalid after the time frame.

Take a new test if you don't believe the first one

Outside the timeframe they say not to read them - as they dry they can look different so doesn't mean anything.

If it's positive within the timeframe that's it

Pink dye tests have been more reliable in my experience, I'd go with FRER or boots early detection