better safe than sorry. there were quite a lot of things i didn't eat during the 9 mths. after all, it's a little person's life at stake here. and it's only 9 mths that you can't eat everything. whereas if it does affect your baby, it might be for life.
but then, if u've already taken it by accident while you're pregnant, just don't take it anymore and don't think about it aymore.