Is my prenatal vitamin enough?
No, this is not going to take care of all those extra nutrients that you require to support all the activity in your womb. However, most nutritionists will tell you that if you are not able to get all of those extra nutrients out of your diet alone, then a prenatal vitamin is useful, especially if you have a tough time keeping food down due to nausea. However, don't let the prenatal vitamins substitute for healthy eating, or the daily goal of getting all the recommended calcium, folate, vitamin B, iron, etc. The prenatal vitamin should be used in addition to healthy eating, not as a substitute.
How do I know that I'm getting enough folic acid?
You'll need at least 600 mcg daily, although many doctors recommend 800 mcg. Most doctors will recommend taking a supplement, but don't depend on the pill alone. Eat plenty of folate-rich foods such as leafy green vegetables, chicken or beef liver, lentils or cereal, etc.
I've never had a calcium deficiency. Is it necessary to take a calcium supplement daily as I am pregnant?
Calcium supplements are not recommended during pregnancy because you have a deficiency of the same. This is because calcium is now also absorbed by the baby. A good multivitamin or prenatal vitamin should include at least 150 to 200 mg of calcium and you can also try a separate calcium supplement. Apart from that, you should still have four servings of dairy or other calcium-rich foods a day.