The line..linea nigra

So I had the wonderful dark line in my first pregnancy with my daughter. It didn't show up until about half way through. It didn't go away until she was about 7 months old. My hubby and I are not preventing baby #2 but not necessarily having sex every day to try and get pregnant either..just sort of going with the flow. I have had a few symptoms that I had with my daughter but not extreme. Then yesterday I realized that silly dark line is back! I do not test until I am late just because it was always a let down. AF is due Wednesday. Any other ladies ever experience that? Have you gotten bfn or bfp? Just curious...😁