Test isn't going to do SQUAT. Just as it's about to fully kick in your done. DO not waste your $$$ and throw it in there. I strongly suggest you stop the cycle and do it correctly! TEST has to be run from DAY 1 and when using DECA, you should always run your TEST higher. Use this as a learning experience.
also, never pyramid your doses. OLD SCHOOL. you want to keep your levels consistent. Though your not running that much, you don't want an emotional rollercoaster ride.