I would like to say that when the times comes for my girlies to be having sex, that they decide to wait, and just NOT!
Problem is, the society we live in seems to push teens into having sex sooner than any of us parents would like.
That doesn't mean we have to condone it, or be happy about it, but as and when the time comes, I would feel proud of my mothering skills if my teen felt able to come to me to discuss it.
Having said all that tho...I have yet to be in that situation, so my views may yet alter.
One thing I would like to try and keep in mind.....if a teen wants to have sex, they will. Regardless of whether their parents approve or not...and if they rebelious, ESPECIALLY if their parents don't approve. At least if you are open with them, they will hopefully discuss it with you first, and so have time to sort out adequate contraception. And also, the likely hood of them going somewhere seedy is much less too.
In my ideal world tho....none of my daughters will even look at a boy before they leave home, and so I escape the need of going grey early
As for my sons......guess I lock them up somewhere!!!!!!!