My regular vitamins (and the Flinstones, too, believe it or not!) have 400mcg Folic Acid in them. That is the recommended amount for TTC, I believe? I know that will change as I become pregnant and the pregnancy progresses, but for now, can I just keep taking what I'm taking?
(The prenatal version of the vitamin I'm taking now - the One a Day brand - has 800mcg of Folic Acid. It also has 150% the daily value of iron, and as I like to eat iron rich foods anyway, that worries me a bit for purely a "let's take this even before TTC happens" option.)