T.Q.
C.,
I am from a family of four children and parents who never had enough money to afford any of those nice things you want to give your son. My husband's parents stopped having children at two so they could afford to send them both to college and provide them with a bright future. My husband's brother is eight years older than him and left his home country for school in the states when my husband was 10, so they were close, but each felt like an only child.
I can't say that my husband or I had a better childhood or a brighter future (we are together, after all). We both managed an education. My sister and brothers are doing well too. My husband's brother is a school teacher and sings in a band. He and his wife have two beautiful children. We each count successes and failures in our lives and none of us credit or blame our parents’ decisions.
I guess what I'm getting at is that you can offer your son whatever you want, but he's going to become what he's meant to become. One life experience isn't necessarily better than another if you stop to think about all the possibilities out there. There are people everywhere (including parents on this site) who struggle every day just to survive and cannot provide great things for their children. But that doesn't mean their children have had or will have "bad" lives.
You saw how quickly things changed for your family when your son had all those medical problems. But you made it through. And you could do it again. You will love your next child just as much, even if she (or he) is the polar opposite of your son. You should decide on what you really want, not what you think will work.
What do you truly desire, in your heart? Nobody else can answer this for you.
Also, you didn't mention how your husband feels about all this. Does he know what he wants? I'm curious. Your situation is very difficult. I'm sorry you're own health issues are forcing you to decide this right now. My husband and I want another child, but we have the luxury of waiting until it feels right. I don't know how you feel about God, but I will pray for you. I hope the answer you need comes soon.
Sincerely,
T. Q