Problem: Pretend you have a friend who has just become pregnant. She has second thoughts and asks you: "What are the advantages of having a baby?" She then tells you that she needs some advice about being pregnant. She asks you: "What are the most important facts for me to know about pregnancy, and what can I do to ensure my pregnancy is healthy?". Based on your reading of Chapter 3, what answers would you give her to both parts of this question?