K.M.
I charted in the same way using the same book and have 3 perfect (ha!) kids. But I stopped charting the day I hit 18 days of high temperatures. When I went to the dr for my first appt with my first pregnancy, they couldn't understand how I knew I was pg - I told them I had had 18 high temps and they looked at me like I was from another planet! Anyway, I did not continue to check fluid on a regular basis, but had become so aware that I certainly knew when I had lost my mucous plug- ick. That was about 2 weeks before I delivered my twins (who were induced at 39 weeks). I wish I could be more helpful - I wish more want-to-be moms would read the book! Good luck and Happy Holidays!