Girls, do any of you know if you absolutely have to have a prescription for birth control?

I need to get on it but I don't have insurance and can't afford an exam. My boyfriend and I had a pregnancy scare and even though we're old enough t handle it, it's just bad timing. So now he's completely cut off sex until I can get on it.
Girls, do any of you know if you absolutely have to have a prescription for birth control?
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