But, I'd take some time to chill out a little bit before I confronted her about it because when we are mad or

, we don't accomplish anything. In fact, it only

s the apple cart that much more.
I would then talk to her about the dangers of dating at such an early age, the hazards that are out there for girls her age & even those that are older than her. Also I would try to make her understand that I only want what is best for her and I definitely would not try to tell her things about "When I was your age" or "I wish someone had told me about..."; because that is when the eyeballs go to rolling & they think they are listening someone with Alzhiemers or something. Keep the tone one with a soft even keel and constantly reassure her of your love and confidence in her making the right choices. Also assure her that she can come to you about anything.
Forbid or no is like a dare to kids and they will do their darndest to do whatever it is that we forbid them not to do; so what I do with my son is that I tell him I would prefer that he will choose not do this or that; or perhaps I will remind him that he needs to keep in mind the choices he has when it comes time for him to do something.
Believe me, I am no expert, by a long shot. But I do have a special needs child and I've attended a lot of parenting classes AND if I can find some positive things that

with my son, they must be good.
Good luck.