Question

Prefix and suffix for prenatal

Answer 1

The prefix would be pre-
The suffix would be -natal

Answer 2

A prefix is added to the beginning of an existing word to creating a new word.
A suffix is added to the end of an existing word in order to create a new word.
The prefix of prenatal would 'pre-' meaning before. 
The suffix of prenatal would be '-natal' meaning the time and place of birth.

Hope this helps!