Evap lines? Testing too early?

Aneesa

Been getting symptoms these past few weeks. Mild cramps and nausea, breast pain and feeling bloated constantly. The breast pain and bloating never happen to me but happened in my first pregnancy.

Did a CB blue dye test on 16/11, I left the test and came back after 10 mins and it looked like a faint line. As it dried the line became darker (see pic).

Same thing on 18/11 however the 19/11 test there’s definitely a line but not dark like previous days.

But I’m not seeing any lines on FR?

Are these Evap lines on the CB test?

Am I testing too early?