Faint line or indent on FRER?

My cycle has been wonky since my second daughter was born, but the last few months have been 35 day cycles which is right around my normal since I went off BC 5 years ago.

I'm two weeks late, have had several faint lines develop after time limit on Walmart 88¢ tests, took this FRER this afternoon. Saw faint line immediately and still see it. But it's so faint I'm not sure if I just have gotten good at seeing indents or what.

Also with my first I got BFP at 9dpo but was a week and a half late before getting a BFP with second.

Anyhow, any input is appreciated.