Garden of Life: My Kind Organics prenatal-multi, are the best they are completely made from whole organic foods- not synthetic "man-made" however you can't take them on an empty stomach you have to eat first unless you dissolve it in water and vinegar then you can just drink that
I take the Enfamil Expecta ones. I noticed they have a ton of everything in them, some brands I found didn't have a whole lot of one vitamin or just didn't have it at all and it has DHA in it, and I don't get any weird burping from it or anything.