I don't think that's wrong at all. It sounds like a pretty legitimate fear to me.
And if it bothers you so much, then there can be no harm in talking to a T about it. There are also so many beautiful children out there waiting to be adopted and needing a place to call home, so there is no wrong in that either. I know that this is still a ways off for you, but I hope you are able to come to a peace about it, dear.