Sports medicine Doc.
You might have just pulled some ligaments, you may have torn them. Unless we've got an orthopedic MD on this board who has the advantage of having your knee right in front of his face to examine, it's all speculation and very unqualified opinion. For all the pertinance and legitimacy any answers to your question posted here would have, you may as well have not posted. I'm really not trying to be a dick here, so don't misinterpret my tone. I'm just pointing out that nobody here can answer your question with any accuracy or reliability that a sane person would stake the health of their knee on.
Just be careful. Knee injuries have the nasty habit of rearing their heads later in life.