Evaporation Line???

Checked the test after a couple minutes and didn’t see anything. Came back to the (couple hours later) bathroom to take a shower/throw away test... and this is what I found. Thoughts?!?! We just finished our 4th <a href="https://glowing.com/glow-fertility-program">iui</a> and have to move on

<a href="https://glowing.com/glow-fertility-program">IVF</a>

after this. 😞🤔

1st test (on left) from the day before and 2nd test right) is from the next morning.