Am I or Am I not?

Ro

I had an <a href="https://glowing.com/glow-fertility-program">iui</a> done on August 5th. I tested yesterday 8-18 & the line was faint. I tested again today & the lines are still faint & the digital is showing negative. I've been ttc 8+ years so this is driving me crazy. I am having some cramping/heaviness in my abdomen so I'm like what's going on am I going to start my period or what 😫 I also do get nauseous at random times.