physiological perspective, the first trimester of pregnancy is when the majority of fetal development occurs, and also when the full development of the placenta occurs. The first twelve weeks or so after conception see the transformation of a fertilized egg cell into a fetus that shares blood flow with the placenta through the umbilical arteries and vein. As a result, these twelve weeks are particularly crucial for the health and development of the fetus at its most vulnerable stage. Among numerous other physiological changes, the mother's nutritional intake needs (which include vitamins and minerals) increase substantially, so nutrition is crucial. The avoidance of alcohol is necessary to avoid birth defects caused by the substance: as Blackburn notes, "drinking alcohol at any stage of pregnancy can affect the brain and other areas of development" (Blackburn 2007, 221).

Zoey's preganancy undergoes what is termed induced labor, in which she is given a...
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