Truly, this was something of a Bible for me in my pregnancy - I kept all of my information here. I particularly used the OB visit section where I could write my questions on one side and then record the next OB visit on the facing page. I only wish there were more of those OB visit page - it ran about 3 visits short for me. I had little use for the incredibly detailed diet journal, but I managed to convert those grids for use in tracking which medications I had taken daily.
This was not only helpful in keeping me organized, but it gave me comfort that if I should become bedridden, my husband would be able to pick it up and know everything - phone numbers for pharmacies, types of over-the-counter medications that were OK, lists of things I wanted to take the hospital, etc.