Indent or VFL?

Sa

I've taken a lot of test and this is the only one I've EVER seen something like this on

.. is this an indent or a VERY early bfp??? I'm 11dpo according to glow but not tracking so I'm not 100% sure if thats right. I've already posted this test but second guessing if it could just be an indent.. this was a 2 hour hold is all, will test in the AM with FMU!