I don't know anything really about Provera but, I wouldn't worry. Jennifer (Nevy's mommy) said that it could be up to 2 weeks, and so that would mean that you still have a couple days to wait. Also if you are so anxious (spelling??) about it maybe that is why it hasn't come yet. Stress is a terrible thing. I know that this is impossible, but try not to think about it.
This is just a joke--- try wearing white, it seems af like to show up if the person is wearing white or another light color.

Good luck! I hope you get af really soon.