If I were with a guy less than 3 months, but we were friends for a while first, I wouldn't be expecting anything extravagant. But I'm the type of woman who just loves quality time and experiences.
If he had to get me something tangible, I love perfume and books. If she likes makeup, maybe you could take her to pick out a couple of items she doesn't have yet? Massages? Does she like having her nails done?
But really, it's the time and effort he invests into making a day special for (and personal to--I don't want all this cliche stuff) me that matters most. You're already ahead of the game for having had a hotel secured and trying to make it nice for her.
If he had to get me something tangible, I love perfume and books. If she likes makeup, maybe you could take her to pick out a couple of items she doesn't have yet? Massages? Does she like having her nails done?
But really, it's the time and effort he invests into making a day special for (and personal to--I don't want all this cliche stuff) me that matters most. You're already ahead of the game for having had a hotel secured and trying to make it nice for her.