Have you taken a couple of SG readings a day or two apart? Are they staying the same or still dropping? if they are the same you should be fine. The bubbles could be CO2 in the cider and not new fermentation. Has the yeast dropped out and its clear?
Primary: 3 gallon cider S-04
Secondary: Valentine Apfelwein Clone 1 Gal
Bottled: Halloween Apfelwein Clone 1 Gal
On Deck: 90 Shilling Clone