Food Aversions

Hi all so I'm 7 weeks pregnant with first baby and have been really struggling to eat. I've never experience any food aversions before except when I've been ill. I'm really struggling now as I can't eat anything at all. I haven't had any morning sickness but I gag at the thought of any food. I know I need to eat and I'm starting to get really down because of it. Can anyone suggest anything to help please? X