Hi I am reasonably new to all this so not completely sure of all the abbreviations but have been lurking on here for a couple of months so think iv got most of it. I came off the pill in march to start ttc and started using opk's last month, just internet cheapies. Last month I totally missed the surge however this month I got a very clear positive, much darker than the control line, on CD 12, I tested the next day and it was still positive although only just as dark as the control. I have tested every day since and the line was getting lighter as I would have expected however when I tested today it seemed to be darker again. Is this normal? I don't take my temperature but did start getting ovulation pains a day or so before the positive Opk which have since stopped so I am almost positive I ovulated already so wouldn't expect the opk's to start getting darker again.