I'm a tb. My opinion is, no need to tell but a little bit to show them u ar on tht way. The time will show ur family to know it. They accept or not shows on their attitude and behaviour. No need to worry ab it. Cos i can tell i didn't tell my family even all my aunts and uncles. But they know tht and accept cos sometimes my gf come to stay over nite wit me and my gf live in my place for half years. And they care my gf too.