GRAPHIC TMI Is this implantation bleeding??

[Soph1302]

Hi all, I tested positive on Wednesday and Friday with clear blue. I have now woken up and gone toilet and wiped and finding light bleeding. Based on my last period I'd be 4 weeks and 2 days along. Photo attached of what I got on 2nd pee of the morning wipe, is this implantation?!

It could be but we can’t know. I spotted in two pregnancies at various points and it was fine.

I was planning on doing a digital date test tomorrow, do you think I would be okay to still do that?