Thanks for the info everyone! I have PCOS so my cycles are a little crazy. But the good thing is that for the last 6 months or so I have been having a period about every month and my cycles have been around 35 - 45 days long. The doctor put me on Clomid 50 mg to help me ovulate.

I bought the answer 20 strip OPK and started testing on day 10 I think. At first there was hardly any line at all. I had to squint to see it. On CD 12 a light line started to appear and I think it has only gotten a very very tiny, hard to tell, bit darker. Yesterday on CD 16 the line was lighter than the previous days line so I got really frustrated. That sounds like what happened to you 'TKEYS'. So I have hope yet. I'm not on 17 and will test this afternoon. I am hoping for a positive or even just a darker line will be fine. I hate thinking that I'm not going to ovulate and waste the whole month.

__________________