FRER lighter but strip test darker?

Officially driving myself mad by testing now and going to stop when I use my last test tomorrow morning…however I had a chemical MC last month hence the paranoia. They are dates on the side not DPO as I don’t know my DPO. My FR have been getting darker but slowly so the last 3 days I also started strip tests for reassurance. I can’t believe this difference…has anyone else had this?

My FRER from today (11/10) is lighter than the last 3 days but clearly based on todays strip test (bottom of the 3) it’s darkened since yesterday and the day before (9/10 - 10/10). I’m trying not to be concerned by the lightened FRER but surely a strip test wouldn’t darken if things were dropping?