Another Love at 17 Question?

I'm 17 and my boyfriend is 18. We've only been dating a short while, but when we're together...everything feels right. Everything feels natural and easy. We can be being inappropriate or sitting in our PJ's reading the latest InStyle together and go on and on about random nothings, and it all just feels like we've been attatched at the hip for a hundred years. I feel like it's love. He feels like it's love. But I grew up in a household where Love was an "adult" thing. Only people in their 20's can fall in love...My heart is telling me one thing, but I feel like society is telilng me something different. What do ya'll think? Could we be totally wrong and is society right?