Folic acid supplements at the very least - the sooner you start taking them the better.
Zinc for your fella.
Lots of people, including myself, use Pregnacare supplements which have everything you and your baby could possibly need.
I take pregnacare (folic acid) and oesteocare (calcium and vit D) and seven seas (omega 3).
My husband takes Wellman for his zinc.
As for actual food to be eating, i think you're ok as long as you are taking supplements. If you are not taking supplements your diet will become very complicated to get the same level of nutrition.