If u don't take prenatal cause any kind make u sick and told doctor would baby still be healthy?

Not likely: The prenatal tablets provide both iron and folic acid supplements. Without ingesting them during the pregnancy especially early on, the risk for neural tube defects (spina bifida, etc.) can occur as folic acid helps to prevent them. Anemia is more likely for you, the pregnant mother, so talk to your OB MD and find a prenatal liquid or tablet that is tolerable.