They most certainly can and do give "marking" talks about unbaptized publishers/non-publishers. I've seen it about 5 times. They do all but say your name.
I'm not trying to scare you--by all means, do what makes you happiest. But since they cannot DF you, this is the best jab they can make. It's a way to engage the pre-shunning practice. Even tho you're technically not baptized, most will still treat you as if you're DF'ed or reproved anyway.
This can happen simply for dating. You don't even have to engage in anything "sinful." When they find out (and they will), they will strongly encourage you to break it off with this boy and if you don't, you can expect a marking talk and your name announced as "no longer an unbaptized publisher."
It's tough, I know! Hang in there. Do what's best for YOU in YOUR current situation. If your family would still be loving & supportive, that would make things easy for you. If they'd clamp down & make your life miserable until you're 18 (when they can kick you out), that's also worth considering. Is this relationship worth all that extra stress?
If you do intend to make your intentions known as a minor, I highly recommend that you think about your future. If you want to go to college or trade school, that would be extremely difficult if you were sent away on your 18th birthday. So again, weigh all the options and do what's best for YOU. That includes long-term goals. Don't put those in jeopardy unless you're really sure about the decision.