When should I start?

Well I wanted to start TKD a while ago, but the day of my first lesson I fell and broke my hand (metacarpal V, actually a fracture caused by punching things, only that it's my pink and all I hit was the floor)
It happened 6 weeks ago, nad is out of the platter (I think that's the word) for 4 weeks.
Now my question is, when should I take that lesson?