hi!u cud start ur diet regimen by cutting down ur carbohydrate rich foods,bec d end product of carbohydrate digestion is sugar.too much sugar in d bloodstream will result to diabetes bec ur pregnant it is so called gestational diabetes.wat u nid 2 eat more are protein rich foods bec it has many amino acids which are very essential for life esp 4 d growing baby.add to ur diet vitamins & minerals rich foods.do not rely too much on supplements,go with d natural ones!gud luck to you & to your baby!take care!