Miscarriage information??

I'm 17, turning 18 very soon. To keep everything short, I believe I may have been pregnant and I've had a miscarriage. Upon describing all signs and symptoms, they've all lead me to that result, and it is completely plausible. I don't wish to cause any hassle or panic, so my only question is that if I do go to the doctors and it is in fact true, are they obligated to tell my parents??