um well, my suggestion would be, since youre under 18, talk to your doctor about it, and tell them you dont want them to tell your parents. most the time theyll respect that.

Patient privacy
unless it's endangering your health
they usually won't say anything

If you are underage, which you are, and your parent(s) want to know if you have had sex then yes the doctor is obligated to tell the parent(s). However there are doctors who would not tell the parent(s).

~Zig

When your under age if the parent asks,then yes they have to right to tell them.
But they wont just up and tell them,and most of the time they wont say anything!

No, patient confidentiality means that doctors cannot just tell your parents.
If you are over 18, they are not allowed to tell anyone anything you tell them. Also once you are over 18, it is considered none of your parent's business as you are an adult.