I came into this post to comment "Slut". But of course, after glancing the text scrolling down, the lexicon convinced me that this was not written by a retarded girl with issues to keep her legs crossed.
As you admit, you were 14, and had no idea of what sex implied in long term. Your stubbornness is a gift, since, thanks to it you were able to change the course of the fate you imposed into yourself.
Congratulations, you're a life example. And I seriously hope that in future posts you mention that you did become a doctor (or you're very close to do so).

I love when I'm right (that's almost every time), but I'm also glad when I'm wrong as my prejudice was when I read the title.