Im 12 dpo and have been testing daily using FMU since 6dpo. I decided I wasn't going to test today because I needed to give myself a break. Well, that lasted until the afternoon when I couldn't help myself and took a test. 🙈 When I went to check it, after the 5 mins, there was a very very very faint line where the 2nd line would be - i'm talking "holding it up to specific lighting and a torch to be able to see it" kind of line. It was barely visible and looked more like a grey indent, so I put it to one side and looked at it about an hour later and it was now gone once dry.
I couldn't put it to the back of my mind so did a 2nd test about 3 hours later, and again the line wasn't immediatly obvious but after about 10 minutes the line showed up, but this time more visible and has stayed once dry. It does look slightly grey though rather than clear pink. The photos below is the 2nd test but it's easier to see in person.
I've fished through the bin and compared it to a few others and none show anthing like this. I have inverted one photo and can still see the line on the invert (I've heard that indents don't glow on inverted pictures? Not sure if that's even true.)
I've been using these tests for a few cycles and have never even been able to see where the 2nd line should be - am I just really unlucky to have 2 indents in the same day?
I've had a few other symptoms but AF is due in a few days so hard to tell the difference. I have been really nauseos all day today and did have mild cramps a few days ago. Ugh I hate the TWW!