Spotting and faint lines

J.

Hello! I have posted a few tests recently where others have also possibly seen the vvf line. However, they are still only showing up on the first response early results tests ( no digital or cheapie) and I have a bit of spotting. It did get a little darker from yesterday but not a lot. 1 test last night then 1 this morning. Anyone else have a similar experience? Period is a day or two late so i would have experienced darker result. The line is pink in person