Worried- not much morning sickness

This is my second pregnancy, my first time around I was very sick starting at 8 weeks. I threw up all day and was nauseous when I wasnt actually sick. I am 8 weeks Tom and I have only gotten sick twice, and only get nauseous when I haven't eaten enough. I don't go to the dr until jan. 12. I am worried and wondering if I should try to move my appt up. I have had no bleeding or spotting! Thanks for any advice!!!