Maybe you've been around the block before and consider yourself an expert at this pregnancy stuff. You've conquered morning sickness (or at least outlasted it) and can distinguish a Braxton-Hicks from a real contraction without running to your pregnancy books. (Actually, you can turn to Chapter 14 to learn about these contractions.) But even if the physical side of pregnancy is familiar, the emotional and mental aspects involved with each new child are always different. Families change with each new member. Yours will be no exception.