my blog is one year old and it also has only two ads. Number of ads depends on how you set it up and not on google. Put more ad blocks and you will get more ads. Are the ads relevent?, if yes, your blog has already been crawled.
I'm really, really new at this. Can you explain ad blocks? And yes, the ads are definitely what I want. I'm please with that, but I see so many others with the same topic with loads of ads.
In most cases, adsense will crawl a site in the first day especially if it has a few decent links to follow it.
You seems to have one ad block (section where your ads show up) with two ads. Adsense offers different types of Ad blocks each can have different number of ads. You can put upto three ad blocks on your blog. If you want to use the same block, just cut and paste the adsense code. Are you using blogger.com (your blog has xxxxxxxx.blogspot.com) or something different?
You should start seeing ads within 48 hours of putting the code. If that doesn't work, send an email to support.
Once google determines what your site is about then new pages that are almost devoid of content (and have poor on page seo to boot) will get ads on the general topic right away.
Adsense Spider started crawling your site in a few moments after implementing ad code.. but it takes almost 2-3 hour to appear relevant ads on your site.