There's really not a huge difference between 13 and 14, unless you've graduated from school, got a job, a house, are supporting yourself, and financially and emotionally ready to support a child, you're still too young to have sex.
I don't know one 14 year old that's ready to commit to a child. I also don't know any 14 year old that can afford to care for a child.
You may not think that your age matters, but it really does. Your best bet right now is to keep your pants on, and make sure she does as well. Just enjoy going on dates, holding hands, and leave the adult behavior for when you're an adult.