I know this isn't probably what you want to hear, but not getting what you want makes you stronger. And not getting what you want more than anything in the world will make you invincible in time. You might convince your parents, financial health permitting, to become foster parents, with your abundant help and input of course.
Or just have one. Go find a boy and just have one. I hear that's also a tough road to go down. Growing up is a hard thing to do, having something, such as a baby, do it for you is much easier.
You're not alone, I too had a moderate maternal aching whilst in high school. If you decide not to, I'll just bet they have a support group for this very thing somewhere on the net, maybe on Stumble Upon or something. Good luck with all your problems and thanks for making mine feel a teency bit smaller.
take my suggs or not i dont giv