Which line is test line?

We’ve been trying for a year now for our first. Weirdly enough, I went for day 21 progesterone and the labs messed up my test code and got an HCG test instead. My doctor called me yesterday(only 1 day missed period) saying It came back at a 7HCG which was 7 days before my missed period so I went in today for blood work to double check. (I really wanted to wait to test so I didn’t get my hopes up) but of course I got tests on the way home.

I know they are positive- one weird one came back invalid so it confused me - but on the FRER is the left or right one the test line? I know the higher HCG the darker they are, so was wondering if my HCG was still really low if the right line was the test line 😞 also, the amazon tests I got are not very good and the dyes sometime don’t even work, so I don’t trust it much 😂