Anyone have this? I'm using these cheapies. The control line comes up fine, then the test line a minute or so later. The test line is pink, but one edge is much darker than the other. So do I read the pale bit (which is paler than the control) and call it a negative, or the darkest bit (which is darker than the control) and call it a positive? FWIW I'm in the part of my cycle where a positive would be likely, getting other signs that ovulation is approaching.