Unanswerable Question

School has been a bit all consuming as of late. Just before Thanksgiving I had my parent-teacher conferences. Most conferences went smoothly and a few were a bit stressful. Overall they were successful and I had positive interactions with parents. Two different parents asked me if I had children. I simply said "No, not yet." Both of the parents then responded that I would make a wonderful parent some day because I am so great with the Kindergarteners in my class.

This interaction made my heart happy and sad all at once. In answering that I didn't have children I felt I was denying my beautiful girls. However, it just didn't seem appropriate to answer that I have angel babies. I didn't want to make the parents uncomfortable and have to explain things and then make it awkward to continue the conference. 

I just don't have a good answer to that question that makes me comfortable. Any answer I give invites pain of some sort and I'd rather not make someone else uncomfortable in the process.