Hi Beth,
Sorry to hear about your back. You may want to lay off the jogging until it feels 100% better and go see your doctor. How are your shoes? Do you wear running shoes? Are the newer and have you been fitted properly at a running shoe store?
You may also want to consider running in the pool. Using a waist belt or a noodle you can actually run in the deep end of pool without putting any strain on your back.