There should be no need to worry - that is a very nice number. 67 is considered a normal bg number for nondiabetics.
Most won't worry unless the number goes below 60, and if it does, you would want to consider a dose reduction.
You are close to the end of your cycle. Put your mind at ease and test again at +9 to be safe, and test again before giving another shot.
Best,
Pam & Layla