Soy milk is great for women who are pregnant because it contains a very high protein and also contain folic acid is needed by pregnant women. But they also suggest to not just the based to milk, there is still a good idea to consume vitamins - vitamins good for pregnant women and high nutritious food.
In general, soy milk has vitamin B2, B2, niacin, piridoksin, and high vitamin B group. Other vitamins contained considerable amounts of vitamins E and K.