So here's what's on my mind in terms of fertility. I have two children. The first born is a 6 year old conceived through the use of donor sperm. The second is a trans-racially adopted 18 mos old.

The 6yr old is coming to an age where I'm beginning to wonder if I should initiate conversations along the lines of, "you understand that I'm not your biological father, right?" Because of the late pre-school sort of "where do babies come from questions that resulted when his adoptive sister arrived, the six year old already understands at a very fundamental level that I didn't "give his mother the special cells that a man has to give a woman in order for a baby to grow in her tummy and be born."

But I don't believe he's made the connection that conception equals fatherhood. I keep reading articles that suggest the earlier you can talk these things over with a child, the easier it is for them to accept and embrace. My challenge is how do I start a conversation that the 6 year old doesn't seem to have any concern or issue with? I don't want him to be blindsided and overwhelmed with it later in life.

I'd welcome thoughts and ideas.