chlorophyll, I really respect you because while you have a strong emotion that makes you want to have a baby you are smart enough to know that right now is not the best time to do it.
The one thing that I would advise you to consider is to complete your education before you have a child. It is really hard to work a job full or part time, go to school if that is something you want to do and take care of a child. Now me, when I was seventeen, I wasn't even sure what job or education I wanted to pursue so it took me a few years to find the path right for me.
Are there ways you might express your love for children now by perhaps babysitting or working some this summer at a daycare? Quite honestly it is fun to be able to enjoy children and then send them home with their parents sometimes.