so confused ... line no line

So very confused ...
AF due in 3 days. Took a cheapie this morning and held it up to the light. I saw a line with no colour but it was a thick line. Maybe there's not enough hcg to detect or maybe I have line eyes like every other excited woman that's waiting for a BFP.. 
Does anyone else see this?
And can someone please invert it as well.
Thank you baby dust to all