A few suggestions, especially if you just found out you are pregnant.
Keep a birth journal. My mom gave me her birth journal that she kept when she was pregnant with me. It was so wonderful to be able to go back and read in her words when she felt me move for the first time, how she was feeling, her excitement and anticipation about my arrival. I have read it a few times and each time I find something interesting and extra special
I started my own journal shortly after finding out that I was pregnant. I have always kept a journal and love being able to go back and read what I was doing when. I should go back and read what I was doing in July of last year (maybe that would explain how I got pregnant)! Anyway, if you go to a book store like Barnes and Nobel you will find a variety of journals. I just got a simple birth journal. If you would rather not spend the $14.99 on a specialized journal, you could always buy a plain pink or blue one and add your own décor. I don’t write everyday but at least 4 times a week and after every doctor’s appointment. I like to see how much weight I’ve gained.
The other thing is when you start showing take a picture of your belly (you can include yourself if you want) every week on the same day. It is amazing to see how much you grow from one week to the next. At the end of your pregnancy you won’t believe you were that big.