Vvfl or indent? 12dpo FRER


I’ve been feeling off for a few days, but kept getting bfn until this morning. 12 dpo fmu and pic taken at 5 min. There’s a vvfl but I’m worried it’s Ann indent. It didn’t show like this on any of the other tests on the previous days. What do you think? I plan on retesting the next couple of days.