Indent or positive or nothing at all

So these two pictures come from 3:30AM, same picture one is just enhanced. I swear I see a line. However I took another test at 7:30AM and there was basically nothing. I am going on 3 days late. Could this have been an indent? I will retest in a few days but any thoughts? Especially since I got nothing on my second test this morning at 7:30.