Infertility Journal

I don't know about you ladies, but I have been keeping a small journal of my daily cm observations, temps, medications, appts, food, exercise, moods, etc...  I was getting tired of filling in all the "fields" each day before filling in that day's info, so I am looking at getting some printed with all the fields already filled in.  Thought this might be something that others would use.  What do you think?  Do you use one?  Would you?  What information would be helpful for you?  Was thinking of having some extras printed when I did mine and then maybe trying to sell some on Etsy and on the blog here.