Is it possible to get birth control without a prescripton and parental consent?

No to 1, Yes to 2: All birth control is by prescription only (except condoms! don't forget to use condoms!) virtually all states allow for minors (women under 18 years old) to seek health care confidentially (without telling your parents). However, the specific age limits vary by state, typically somewhere between 13 and 16 years old. Call your local health department to find out more.