Hi - I saw your questions and wanted to suggest Planned Parenthood. I'm not sure where you live or if there is one nearby, but I know that when I was in High School I went to Planned Parenthood with my boyfriend. There was a long line (we had to wait a bit) but they were *super* nice to us and answered all my questions. Back then if you were under 18 they wouldn't charge you and wouldn't tell your parents, plus they gave us free condoms!
They have a number you can call: 1-800-230-PLAN and the website is here: http://www.plannedparenthood.org/index.htm
I'm not sure what the rules are in your state, so be sure to tell them how old you are and ask them if it will cost anything and if it can be confidential (so they don't tell anyone). Best of luck!