Well, being gay, I'm either part of the problem or the part of the solution, depending on what the problem is. Let me know when you get that question sorted out and I'll either apologize or accept your thanks. [:D]
Being gay doesn't mean not having kids. I know of many gay women who chose in vitro.
Re: the OP, Fertility issues are heartbreaking for many women. Telling them "We have enough kids already" is rather cold.
"In vitro?" Why not a good Rogering from a guy to get pregnant?
I have been trying to get pregnant for a while. I suffered a miscarriage back in June, but I am still trying. I am by no means rich, in fact, I am up to my ears in medical bills, but that's my choice. I am paying all my bills and busting my ass to do so. I will NEVER have enough money to have another baby, you just have to have kids if you want to and trust that everything will work out.
If all of us "waited" until we could to have kids, most of us never would. That's the reality of the situation. And I find suggesting to women that they wait to kids offensive. It implies that poor people are incapable of being good parents.