Should I worry that I'm not able to eat much?

9w3d Nausea and extreme food aversions/pickiness = not able to eat much. All I can eat is a little bit of spaghetti. And fresh watermelon and oranges and tomato based vegetable/lentil soup.(which I can't stand anymore) That's been my every day diet for weeks now. How much harm is this doing to the developing fetus that I'm only able to eat the same things and a only little bit at a time for weeks straight? I am at least taking raw plant based prenatal daily with 800mg folate (non synthetic version of folic acid) but really concern that I'm barely eating.. Just enough to not be dead