It would be a little difficult to give you a great answer just having a look. My suggestion would be to hop into your Google Analytics.
Goto Content > Landing pages and compare the dates from your edits and previous period before the loss. This will give you a good start on identifying pages. Keep the dates the same and do the same with all your Traffic Sources. This will really help shed some light.... I have had this happen in the past and it was just a Referral site sending traffic that ended having server issues for a few days.
So don't jump the gun and think it was directly related to your work this week until you can identify where the loss came from.
