You probably over did it a bit and that is why you are sore. As far as the vaginal discharge, that is normal for a girl your age. If it gets to be too much, try using a panty liner. It could be that you "lit the fire" so to speak and your body is simply responding. All very, very normal. When you do decide to jump in with both feet, please, please have your boyfriend use a condom.
Oh right..thankyou this helped alot!
I'm not planning to do that anytime soon but when the time comes i will get him to! Thanks again:)