Confused

I’ve only ever dated guys but I’ve always been attracted to girls as well. It’s not that I wouldn’t want to date a girl but I’ve never been brave enough to actually go for it because I live in a small town and I know everyone would talk about me. Mostly though, I’m worried about what my family would think if I came out as Bi. I don’t know if I should just keep it to myself unless I find a girl I want to date long term or if I should talk to them about it now. Any advice?