8 days past trigger

Can you see a line ?

What are the chances this is still the trigger? I tested my trigger out with the pink dollar tree test and the lines have been completely out by 6 days past IUI today I am 8 days past IUI and I took the test at 6 and pictures taken 3-4 minutes after.

Last cycle I tested positive at 9 days past IUI

with first response and my trigger out by 6 days past IUI too I was pregnant but unfortunately ended as a chemical miscarriage.

The only thing I feel is tired and thirsty and I been having mild heartburn but that is it I am also on progesterone