I gave birth to our son last September. A friend's DM is visiting her and when she saw us, she said "So, you finally got your boy" in front of my 8yo and almost 5yo dds. Way to go ....
I fumbled a bit said "Well, we weren't trying for a boy; we would have been delighted with another girl ..."
Then Dd2 interrupted with the most awesome reply: "My mum has got us three kids, actually. Hello. Bye!"
I'll never be stuck with what to say about this ever again!
Might leave out the hello/bye bit, but you get the picture!