"When are you having another baby?"

Monica • My husband and I are 36 and 35, high school sweethearts, married in 2005, son Gavin born 11-27-15. PSU grad, work for small newspaper as a reporter.

How do you politely end this conversation when someone asks? I have a big family gathering coming up, and I know my nosy relatives will ask about whether my husband and I are considering trying for a second child. I would like to, but he's leaning more toward "no," but I really don't feel like discussing it with others. My go-to answer has been "it's up for discussion," but that doesn't always stop the intrusive questions.