Many birth mothers have found it difficult to talk about their birth child with people they don’t know. Do you feel that the person asking if you have kids is someone you’d like to share your personal feelings with?
If you are OK with going into detail about your adoption plan, that's great. If not and you find it easier just to say “No,” it doesn't mean you’re denying you have a child. Don't feel guilty about answering "no."
If you haven't found a response you’re comfortable with, here are a few suggestions. One of these might work for you when you're asked: "Do you have any children?”