Hi all need some advice.. I had a car accident in december and suffered a back injury have been using TENS and anti inflamatory tabs to relieve it.. It seemed to be getting better but this week i seem to be suffering again.. i know i cant take anti inflammatorys but can i use my TENS machine... im 9 weeks pregnant and dont want to cause any harm to my baby or increase the chance of miscarriage.. any suggestion as to whether tens is safe or not?