You will have to see the doctor on your own for your mum not to happen. The doc is then not allowed to tell your mum as it is doc/patient confidentiality. You are also 15 so it is unlikely she will see it as a big deal - I heard that by 14 the majority of teens/a high % have had sex with 5 people. You can always ask your doc not to say anything to your mum if you are in there on your own and she won't. If your mum is in there you should lie unless it effects what you are being checked up on. You could always tell your doc seperately if need be. Good Luck.
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