...when people ask you when you're going to have kids?

I get asked at least once a week or get comments about it. I have never advertised that we're TTC or even hinted at a timeline because I just don't feel like it's anyone else's business and because we've haven't had any luck yet so I don't really want to talk about it to them. Once when I was asked by a person I am not at all closed to I smarted off and said we've have kids around 40 weeks after they were conceived.