The correct answer to this open question is the following.
Here is the information so you can make a collage of the hazards of prenatal development.
These are the most dangerous hazards you have to consider.
The first one is any mother's illness she already has such as infections. Another is any complications related to the pregnancy. You also have to consider nutritional problems or deficiency f an important vitamin. The nutrition level of the mother is of the utmost importance.
If the mother does not have the proper medical attention during the pregnancy, this would be a considerable risk to the fetus. Stress, tension, or mental imbalance during pregnancy also has to be a consideration.