Incomplete pass or fumble

[Warrenkicker]

QB drops back to pass. QB is hit while his arm is moving forward, the ball goes forward and hits the ground. We would all call this incomplete. QB is hit while his arm is moving forward and the ball goes backward and hits the ground. I think we all would call this incomplete.

QB is hit before arm is moving forward and his body is turned to one side. Then he begins his motion to pass. Arm motion is in a backwards direction and ball goes backwards and hits the ground. There are no A players anywhere near in the direction his arm is moving. What is your call?