Not gaining weight

Em

So I know this is weird and perhaps because I cut out alcohol, soda and trying to eat healthier in general but I’m down 3-4 lbs since finding out I was pregnant. I’m 10w3days and when I saw my dr at 8w she wasn’t concerned but I haven’t gained anything yet and wondering if I’m not eating enough (I eat every 2 hours but not a ton because of morning sickness). When I overeat I feel sick to my stomach.