Hurt Ankle? How soon can I use it again?

I hurt my ankle yesterday (Sunday) while playing badminton. I don't think its very bad and am not sure if its a sprain; there was no swelling and it only hurt a bit when I put pressure on it. Today its better but I still feel a bit uncomfortable if I put weight on that ankle. I'm skipping badminton practice today, but I was wondering if I can go back tomorrow?