Joy? Of course. But a source of pride? No.

Slate's Dear Prudence received this letter from a reader seeking advice:

Dear Prudie,
My mother-in-law is driving me crazy. My husband and I just found out that we are pregnant with our second child, and I heard she's pregnant, too. I cannot conceive of being pregnant at the same time as my mother-in-law! She has this notion that she is "too young" to be a grandma, and I am so angry with her for trying to take my spotlight. She is 44 years old, and it makes me upset that she wants to have...