Food????

I'll be six weeks tomorrow and I am soooo nauseous. I haven't thrown up yet but every time I try to eat I start gagging and it's pretty miserable! I didn't get morning sickness or even nausea last time I was preggers. Do any of you ladies have any tips? I have crackers but I feel like they do absolutely nothing. I'm so hungry all day long and I'm really nervous it's hurting my little one. :(