Oh, I understand, Marley. But don't let people bug you, it's your decision.
I've had people ask me some odd/inappropriate questions becuase of some of my feelings on that sort of subject. You see I have never really had a boyfriend (and never really actually been on a date) and I have alway felt one day, I might get married and have kids, but it is just as likely (if not more) that I will stay single for the rest of my life. No boyfriends, no husbands, no children. Honestly I think that I would be happy like that. Granted I'm only 19, I could change my mind, but because of this I've had so many strange reactions.
I've gotten the "You'll change your mind", "Just wait till you're older", "Are you a lesbian? There's nothing wrong with that, you could tell me." (Maybe there isn't anything wrong with that but not wanting to get married does not make me a lesbian).
So I understand that people can be insensitive. Just try to ignore it. It's your life and you have the right to choose who you want in it. If that doesn't include children, then that's you're decision.