<human>: I'm 18m and she's 18F, we've known each other for about a year and just began a relationship recently

Okay here we go, 
So I began rowing crew about a year ago. I love it to say the least. It's miserable strenuous work but I like the intensity so I stick with it. But anyways when I began to row there was this girl who was absolutely adorable and shy. So being the cocky rascal I was I started to chat her up and got her number.

 Fast forward a couple months and I've been talking/texting her weekly with no progress made in my pursuit for her. So fast forward another grueling six months of no progress to my school's homecoming. And brilliant me decided who else to ask besides that gorgeous girl I met at crew? So I ask her, she's ecstatic and this finally kicks things off. She starts to become more and more comfortable with me and so after HC we go on a few dates. I kiss her a few times, never fully makeout with her but surprisingly a couple times she insists I sleep with her (not sex but cuddling etc..) I do it of course.

 After doing this a few times I ask her to be my girlfriend and she accepts. So presently we're about 2 weeks into the relationship and I'm just wondering how to move things to the next level. It seems like she's pretty comfortable with me, enough to sleep with me atleast, so I'm just curious if taking it up a notch would be a bad thing? And If I was to do it, how so? She's a confusing girl and doesn't particularly express her emotions very efficiently. Also I'm her first boyfriend, she's not my first girlfriend

Can you condense the text into a few key points?
<bot>: finally got my dream girl, want to move to another level, don't know how to as she's really hard to read and I don't want to offend her.. I'm also wondering If it's too early to even consider that