Or did you have one when you were pregnant? I had one with A and was pretty good about filling it in every few days. I have one for this baby too, but I won't start filling it in until after my first appointment. It's one where you fill in every date and I'm anal, so if the doctor gives me a different due date I would have to change it plus I want to make sure all is well, but I may jot down some things on a separate piece of paper until then!
Did/do you have a pregnancy journal? Were you/are you good about keeping it up to date? Which one do you have?