Last Friday I had 9 pages indexed and when I checked today there were 2. One was the home page and the other was a supplemental result for a PDF article. Webmaster tools is not showing any errors and my site is being crawled without any problems. It also shows the most popular page as our About Us page last for October but it is not even indexed anymore and just last Friday it showed a different sub page that is no longer indexed as the most popular page for November. Now it shows the home page as the most popular as it is the only page currently indexed. The last time Googlebot visited the site was November 2 and it crawled without any problems.
I was wondering if anyone has experienced this recently and if I should be too concerned about it or if it is a normal fluctuation?