Folic acid, iron phosphate, bioflavonoid formula, Iodine Phosphate, multi vitamins and minerals, Vitamin C formula, B-Vitamin Complex, Iron Tea can all be taken by a pregnant woman. You could delete bioflavonoid and B-Vitamin Complex though and still get necessary nutrition for your pregnancy. And yes, Dherbs.com will give you a nice discount on a large order. Now here's what I would personally suggest for a great pre-natal regimen: Pre-Natal Formula, Electric Greens Combo, Vitamin C formula, Iodine Phosphate, Folic Acid, Iron Phosphate formula, Pre-Natal Tea, Prenatal Laxative (optional).
Electric Greens Combo
Iron Formula
Vitamin C