OPK help please

[stillhangingon]

The least 4 days my opks have been fairly dark, but only half of the line is almost as dark as the control, and the other half is faint?? This is really confusing me as not sure what it means or if it's something to do with the tests themselves?

I would have thought the whole test line should be the same colour, perhaps a problem with the batch? Might be best to get hold of another brand but start dtd so as not to miss out!

Hey! I have had opks like this recently and I was a little confused like you. Turns out they were positive as my period arrived when it should have x