I came up with an answer later in the day when talking out the conversation. Realizing that I so infrequently give voice to my real desires thinking that if I don't put words to them, and act on making them happen, perhaps it will be less painful if they don't materialize.
Sitting back, and talking openly, she helped me find the words that have been inside for so long. Yes, we really want to expand our family.
All my love to our three wonderful children, and may my wishes come true for more.