I think it's still a bit early for a digi, I'm not sure that one would come back positive just yet, but it DOES depend on the brand. I've heard the FRER digis go positive super early. With this pregnancy I got a +digi at 10 DPO using a Clear Blue with Weeks Estimator--they are super sensitive too. This page shows what my FRER looked like just before I got the +digi.
https://babyandbump.momtastic.com/p...super-squinters-wondfo-frer-update-bfp-3.html
This is just my two cents but I always wait to get super duper excited until I get a clear second line on a FRER *and* a positive digi because I've had so many cycles where my faint IC and other lines (blue dye, and FRER sadly too) have wound up with AF coming right on time, grrr!
Edit: I don't think that's the case with your tests--especially that superdrug looks pretty darn clear. I just mean that to me getting a +digi is a big milestone! That's when I really start to scream and dance haha!