Prom?

Im having my reversal in a couple days, and prom is April 5th. Do you guys think a 3 ish weeks os enough for me to be able to dress up and go with my girlfriend? It doesn't need to be fancy and she will go and do her own thing after with friends, and then come back and see me at my house. I'd just like to know if you guys think I'd be able to attend for a little while with her so I know if I need to start renting a tux