Well, text her and just see what she's doing and that you'll be looking forward to seeing her in a couple of nights. Show a little interest in her and see how she responds. Then you take it from there. Sure can't hurt.
Me and this girl have got off twice now at a club (not slept together). The second time, I got her number (two nights ago). Should I text her? If so, what? Also bear in mind there is a high probability we will be at the same club in two nights time.
At least contact her before you see her again. Or else she might want to know why you didn't. Awkward…