Brown CM 12 DPO?

Sierra

I believe I implanted last Wednesday (headache throughout the day and felt severely dehydrated despite drinking so much water). I tested positive Saturday morning with FRER and lines have been progressing.

Today (Wednesday), I noticed that I had brown/muddy discharge internally. This was around noon. It’s been somewhat dry since then. If I got my period it would be tomorrow. Today marks 3 weeks and 6 days so still very early on and could be a CP

Thoughts?

Ill be following up with my team next week but curious if others experienced this