Hello wonderful ladies! I'm still new to charting so I am not sure if I did the right thing. <a href="http://www.fertilityfriend.com/home/2ec3f6" target="_blank">Here</a> is a link to my chart. After not seeing a significant temp change, I decided that I'd try to discard my one high temp of the cycle and ff automatically put my o date on cd 20. I had gotten my first positive opk that morning, but it was a faint positive. The next two days were glaring positive. Is it possible that I really did o on cd 20 or should I uncheck the discard and keep waiting for a significant temp shift? Wouldn't my opk be positive on cd 19 if I o'd on cd 20? How long do they usually stay positive after you o? On a side note, I have very erratic waking times due to nursing my toddler. The higher temp was due to getting a longer amount of sleep. Thanks for any advice or thoughts you can give.