congrats on your wonderful news.
try not to worry yourself to much about the eating thing. alot of women go through that in the beginning especially when m/s is involved.
i had m/s for the whole first trimester and even lost like 12pds. i was concerned to because even when i did try to eat it would come right back up, even water and juice. i did try those Ensures that they have out for pregnant women and that really made me feel better with all the vitamins and nutrients they have.
my m/s did get really bad where i could not even get up so i ended up calling my doc and she was cool enough to call something in for me so i won't have that horrible feeling of throwing up and i could start eating a little.
now i am 27 wks and sometimes feel that i can't get fool, lol.
give it some time and your appetite should come back.