You are definitely producing hcg, your lines seem a lot clearer this month, unsure whether it's the tests as they are different tests. But they aren't just indents or evaps. If this isn't a pregnancy like the other months, it must be really wrecking your brain! I am putting my lines down to chemicals at the moment, due to my frers and also as my scan didn't show anything. But seeing the scan did help me mentally if I'm honest! If this isn't your month it would be worth a try with your doctor. Do you have one who specalises in smears in your surgery? If so I'd see them.
But I do hope it is your month. If you ever need to talk please message me! I know how bonkers months on end of faint lines makes you! And this is a place of support, which you are getting from some of the ladies on here! I sometimes didn't post pictures as I felt silly doing so, but felt so much better when I did as I could share them with friends or family, and just felt stuck! So please do continue! I have all fingers crossed for you xxx