Where are you from? In much of the world, uncut is actually more common. If you are in the US.. well you are the minority, but that is slowly changing I think.
Anyway, keep it clean and it's really not a big deal at all. Bit of a funny story, but my first girlfriend didn't realize I was uncut (and she had seen circumcised ones before) for months after we started *******s/sex. If you're able to pull it all the way back - you may have a problem if you can't - and it's hard when she sees it, odds are pretty good she won't even notice, and won't care if she does.
Basically keep it clean and there's no problem.
And if she's one of those weird people that cares enough to make a big deal of it, *cough* wildfire, well screw her, find a more reasonable girl.
But yeah, don't worry about it, by the time you get to the stage where she sees you naked, it's pretty unlikely that she's going to change her mind just because you're uncut. If she even notices at all.