You'll also get an email from us when approved.
Our advertising partners do have a minimum traffic threshold. Looking at your page views, it's not possible to earn meaningful earnings given your traffic levels. A site generally needs thousands of page views each month to earn meaningful earnings. As your traffic grows we will continue to apply to get ads activated.
For now, I recommend reading this guide: http://en.support.wordpress.com/getting-more-views-and-traffic/
I want to strongly emphasize sharing your blog with your friends and family. If they like it, they'll share it with their friends, and so on.
Also, please note that you can always contact the WordAds team directly via http://wordads.co/contact/