So I'm 16 and haven't gotten my period in six months. I was sexually active and haven't been since November. If I go to a gynocologist for my period issue and they find out I've been sexually active can they not tell my mom if I told them not to?

Listen.. if you are mature enough to have sex... then you are mature enough to tell your mom about it.

Sorry to be so blunt... but you are 16.. time to start acting like it. You are 2 years away from being an adult.