Congratulations! If you're still in your first trimester, take heart! Food will become more appealing again and you will get energy back in your second tri (than lose it again in your third... I just got up from a nap).
I don't have any cookbook suggestions, but we've got a little thread with some freezer ideas in the playground (
viewtopic.php?f=10&t=1852&hilit=freezer).