Should this look like this

Chelsea • Trying to conceive problems
Should this ovulation test look like this 2 days before your period is due I have been taking tests and there's ghost lines on every single test I have taken and to me the lines look like there only getting a Tiny bit darker 
How dark should your test line be at 13dpo pink test strip is the ovulation test and the blue test strips are pregnancy tests 
So confused 
I will post pics below please tweek for me thank you 
I also bough a clear blue and it's not working I think the battery's may have gone