So for about 2 days there have been no visible activity from the airlock after it had a good amount of bubbling for several days, so I decided it would be a good time to transfer it to my secondary.
I set the primary bucket on a table, moving it as little as possible, and without removing the lid or airlock to prepare for siphoning. I left the room to sanitize my equipment and upon my return, the airlock started bubbling again. It's been over 36 hours and its still bubbling at a constant pace.
Did I just wake up the yeast, or did bacteria somehow get in?