Miss Manners response here

How exactly does one respond politely to a couple (usually the wife) who earnestly inform you that they're trying to start a family? Normally, I assume that intimate activities should not be featured as a topic of conversation in party settings, particularly if one's acquaintance with the couple is fairly recent. I'd like to discourage further comments on the issue. A disinterested and vague "hmmm!" seems appropriate, but perhaps not supportive enough. However, coming right out and stating, "Why are you encouraging me to consider you and your husband naked?!" seems a bit much, although more suitable to my frame of mind. Should I call attention to the fact that this is not an appropriate or comfortable topic? Should I pleasantly encourage this enthusiastic and slightly desperate wishful future parent? Should I simply and delicately change the subject?

DFO: I thought I was the only one who thought this comment was strange. Indeed, I tend to look at the guy in this pairing to determine if he's drooling re: the "trying."

Question: Does it bother you when a husband or wife or both tell you that they're "trying to have a baby"?

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