IUI line is getting lighter

Amy

I tested out my trigger abs was gone by 8dpt, started getting bfp from 11dpt. I’ve been testing every morning with frer and clear blue, and every day line is a little lighter. I’m now 16dpt and only getting a very slight line on frer at 11/12dpt it was much darker, not bleeding ….yet! Thoughts? Do you think I’m out?