Pregnant but not hungry anymore

Hi ladies!

Currently I am 4w5d but I seriously have to force myself to eat. Before pregnancy I could eat a whole house lol and I would get shaky if I didn't have food for a long time. But now it seems my blood sugar is stabilized and I can go all day without eating. I still make myself eat small meals. I do not feel nauseous or anything, I just have no appetite. No fatigue either. I actually feel great, just sore boobs and intermittent vaginal cramps (so weird) has this happened to anyone else?

Thanks!