The Faint Line Fade 😭

Well I have had a few chemicals in the 2 yrs I’ve been TTC and there are some notable differences to this month’s experience. One being, I got my vfl super early (10dpo), usually I don’t see anything until 13dpo. I started temping a few months ago and I doubt I do it right but for the first time ever, I got a notification saying implantation is confirmed and happened on 9dpo. Today is 11dpo and FRER is being a bugger but I do have vvvvfls on a couple of Internet cheapies I had on hand. I never really expected them to be good for anything.

So I’m wondering if sensitivity could vary from test to test and if I’m just being way too impatient? Or am I watching another chemical happen?