I also was very hungry in the beginning (4-8 weeks) and seemed to be constantly thinking about food! I'm now 13 weeks and in the last couple of weeks my appetite hasn't been so big, in fact I now go to eat dinner and find I can't finish it. I still crave naughty sweet foods though (chocolate, biscuits etc). Hhhhmmm I wonder if that means I'm having a girl.....!