If it's been less than a month since you started seeing each other, unless you got off to a very fast start, you're in the clear; you probably don't need to spend Valentine's together, assuming the relationship still isn't well defined and the two of you aren't yet treating one another like boyfriend-girlfriend.
Maybe she already has a charm bracelet that you could buy her new charms for.
That happens sometimes.
If your girlfriend simply adores chocolate, then this is a good option for you.
Any other set of circumstances, though, and you need to do something "meaningful" on the holiday.
Well, this happens:
At the end of the night, he surprised me by booking a hotel room.
The Perfectionists" Reveal Emison's Fate.
Depending on the weather and where you live, some options include hiking, camping, boating, hitting the slopes and kayaking.