Is this normal? Or implantation?

Je

I’m currently 9 days late on my cycle and TTC.

This morning I felt some pelvic pain and now I used the restroom and when wiping I notice a brown color sort of faded on the tissue. I am unsure of what to do I tested negative 3days ago and I have a fertility consult coming up next week, I don’t want to overthink anything and get ahead of myself.

Any suggestions or opinions on why this could mean?