Prenatal Vitamin Deficiency: Potential Risks During Birth & Pregnancy

Question
I am 21, w/o children, but I am in my 8th month of pregnancy.
I wanted to know what could happen to my child during birth if I haven't taken my PreNatal Vitamins on a daily basis. (What are some complications are birth defects if there are any?)
(Also does it mean I will be okay if I have had a pregnancy with zero problems?)

Please Help me understand?

Answer
The prenatal vitamins help the growth of the baby's bones, teeth, muscles, etc. if you did not take the vitamins, you will not have any birth defects due to not taking the vitamins. HOwever, the baby would be more healthy if you did. The vitamins also is a source of Iron and other minerals and will help if you are planning to nurse the baby.