There is a make (you can buy them only at the Apotheke or online) called Orthomol, they have very good liquid vitamens. The highest quality. The have a prenatal dose and one specifically for women.
Actually, the Orthomol Fem version has more folic acid in it, almost double than the prenatal version. I would recommend that one. Especially if you look at all of the ingredients individually. It includes omega 3 capsuls which incidentally can help protect against post-pardum depression.
if you want more details, feel free to send me a private message.
here is the link:
http://www.orthomol.com/Products/Cor_f/a tip: don't just look at the label, just because it says "Natal" doesn't mean the individual ingredients are the best. A really good prenatal formula would have more than 400 micro units of Folic acid.
[img]http://www.orthomol.com/Images/Cor_F_GTK_18005-30_tcm9-12213.jpg[/img]