I'm guessing there isn't an Adsense honeymoon period similar to Google's serp honeymoon. My question - is there some sort of initial period for new adsense publishers with regards to eCPM, my account is less than a week old.

I am running ads that seem mostly relevant but Adsense is not crawling my site. I also have a certain page which has good amount of Impressions but the eCPM is 0 and the earnings are 0, my other pages are however generating money, peanuts actually.