My user name is what I tell the busybodies: "One and done." I don't tell them: I had fibroid tumors in my 30's and surgery to remove them. With the scarring, my doctor didn't think I'd conceive. I didn't; until age 43. It was a complete surprise and six years later, we're still in shock. I had an emergency hysterectomy following the C-section. No one knows the individual circumstances a family faces. I don't have any patience with strangers butting in especially if they address my child. We've told him we are happy to have him and we're sorry,but we can't have any more babies. The other kindergarteners all have siblings. and "No, Aaron, we can't adopt even a Haitian orphan..."

We try to allow him as much playtime with others as possible. He'll adjust. Kids and families are different for all sorts of reasons. The only downside to me for being older is the lack of older family members; both of my parents and older relatives have died and my husband's mother, age 82, is the only living grandmother. My son' s only cousin his age is my brother's younger daughter. They don't live near but it's cute to hear them on the phone together. My mother died a year ago, so I'm glad she got to know her grandson for a little while.
For strangers I'd give a snappy answer or if you're more polite than I am, say "You really don't know us well enough to talk about such personal things."