Testing out trigger - when was your true +?

😶‍

<a href="https://glowing.com/glow-fertility-program">Iui</a> #2 tomorrow and I triggered last night. I've decided to test out the trigger this time for no other reason really than to give me something to focus on during the tww 😫 all of these tests are from this morning but I plan to use only the clinical guard (pink cheapie) from now on to compare.

When should the tests turn negative?