Inconsistent tests...

I took the trigger shot on February 2nd, had <a href="https://glowing.com/glow-fertility-program">iui</a> on the 3rd. I tested out my trigger with pregmate strips. 12dpt I took a FRER and had a faint line, the next day I took a rapid result also a faint line. Then at 14dpt I took my last pregmate and it had a slightly darker. I was over the moon. Yesterday I got a first signal to make sure it was getting darker and it was stark white. 🙁 no line. No shadow nothing. I go for bloods today but not feeling hopeful.