Hi Pebs,
Tell me to go away if you already know what I am about to say but just in case you don't here goes!!!
All human beings have lutenising hormone floating around - always. Even men. So, if you are registering a second line in could just mean that you are picking up that LH that is always detectable. When the LH surge occurs this is what is needed so an ovum is released. This is what the opk's are picking up. You are very likely to ovulate within 12 - 48 hours after detecting this surge.

It is not uncommon for women to report that they "never get a positive opk". I am one of them and I know I ovulate and I know I am fertile. When I used opk's last year whilst ttc I started to think I wasn't ovulating as I never got a positive. I had blood tests each cycle that showed I had had a very good ovulation each time but the tests never went positive.

I then contacted an internet opk supplier. She explained that once I see a second line to begin to bd. I did this and conceived. Unfortunately that pregnancy was lost at a little over 5 weeks and that next cycle I conceived again doing as she had suggested. I have learnt for me once I see a second line I am about to ovulate. The lines have only ever (except once) got to be 2 shades lighter than the control. Sometimes when I test 3-4 times a day I get an almost positive. I have given up on that though. I know for me that once I get a second line we bd away for the next 3 days.

Now, that is my body and yours is obviously different. However I am not the only woman here at BB that will tell similar stories I am sure.

From what I have learnt what I would sugggest is buy up on some opk's and begin to test from about day 12 (unless you have really short cycles otherwise start testing earlier). It is best to test at around 2pm so 'they' say. However, the closest I ever got to a positive was at 10pm so who knows???
Anyway, once you see a second line test again 4 hours later and then again 4 hours after that. You are very likely to see the colour get darker, and this is telling us that you are probably getting closer to surging. Ensure that you don't drink in excess for a few hours prior to testing and try and hold your urine for a few hours prior to testing. Never use fmu as this is the most concentrated urine of the day and will likely show a false positive result. What often happens is you will get a feint second line one day for each testing and then the next the colour will get darker. If you have a feint line one day at each testing begin testing the next day at 10am. Don't waste your sticks by testing more than once a day until you see a second line. It is thought that we surge at about the same time each cycle, however I have seen conflicting "evidence" of this. So, just because you got a postive at 2pm one cycle doesn't necessarily mean that you will see it at the same time of the day in the next cycle. Once you start to see a second line bd away for the next 3 days to give yourself the best chance of catching an egg.

Just remember though you still may not get a positive but you will likely see a darkening line, which for girls like us can be pretty exciting!!! I know I have a smile on my dial when I see it anyway, but maybe I need more to do!!!!!

As for your cm.... Now, I don't get much if any ewcm. I used to but not any more. What I have learnt though and seen through my work (I am a nurse) is that women can have lots of nice ewcm up around the cervix that just doesn't come down. This can confuse us a bit. I know it does me. Try to be more aware of the sensations and the feelings. Sometimes you may feel wet but not actually see evidence of this in your undies. Also, sometimes the ewcm is lost down the loo as it is watery and like ew. There are many babies born to women who thought they weren't ovulating because 'the mucous hadn't changed'... I am not sure if that will make sense. I am not going to comment on the charting as it has been so long since I have personally done it that I won't be a good one to comment but I know there are lots of women in here who are masters at it.

Now, once you get the two lines on your opk take special note of when you go back to just the one line. Count on 7 days from then and go to your gp and ask for a post ovulation progesterone level. This will then give you some information on weather you are ovulating and weather in fact those two lines did herald ovulation for you. Women with pcos will often have 2 lines on their opk's all the time. So, this method would not work for them.

I buy my opk's from Lullaby conceptions and the lady there is extraordinarily helpful. I know it is costly to test so often but it will give you an idea of what your body is up to. It is only one way of doing it and it may not suit you but I thought I would mention it. Once you know if the 2 lines even if they don't show a true positive mean you are ovulating you dont' need to test this often. It really just gives you a baseline and the confidence to say '"yes, two lines means I am about to ovulate". It wouldn't be wise just to assume that two lines means you are ovulating without having some bloods taken at 7dpo.

I know from the other post that you are ceasing your epo. I think that's wise but many women use grapefruit juice to increase ewcm also, so that may be something you might like to consider.

As I said put me back in my box if you know all of this!!!

Hugs again...