Scared, lost, I don't know

Hi (Sorry english is not my first language)

I hope everyone is ok when you are reading my post.

This is maybe not the good place to ask that or maybe it is but basiclly i'm scared. I(16F) am lesbian and i know it since 2 years, everything were good until my girlfriend (WE are in a 3 months relationship)asked me if my family does know for her and my sexuality. Of course they don't know and I'm really scared to do my coming out to them and maybe being rejected. I will be sad if that happen but i can live with it, i'm more scared about them wanting to stop seeing my girlfriend.

Do you have any advices or something for me ? Because i'm more than lost Thank you if you answer