Drag camera with two finger swipe

Hello!

I'm trying to make the camera to be dragged by placing two fingers on the screen and swiping them up/down - left/right, but with no success by now. I've made it draggable with one finger, but am still struggling to make it move with two-finger swipe.

Here's my approach:

 public float dragSpeed = 10;
 private Vector2 dragOrigin;
 private Vector2 startPoint;
 void Update()
 {
     
     if (Input.touchCount > 1){
         dragOrigin = GetInputRange();//Input.GetTouch(0).position;
         return;
     }else{
         return;    
     }

 Vector3 pos = Camera.main.ScreenToViewportPoint(Input.GetTouch(0).position - dragOrigin);

     Vector3 move = new Vector3(-pos.x, -pos.y, 0);
     transform.Translate(move, Space.World);
 }


 static bool IsBegun(Touch touch1, Touch touch2)
 {
     return (touch1.phase == TouchPhase.Began && touch2.phase == TouchPhase.Began) ||
             (touch1.phase == TouchPhase.Stationary && touch2.phase == TouchPhase.Began) ||
             (touch1.phase == TouchPhase.Moved && touch2.phase == TouchPhase.Began);
 }  
 
     Vector2 GetMidpoint(Touch touch1, Touch touch2)
 {
    return Vector2.Lerp (touch1.position, touch2.position, 0.5f);
 }
     
     Vector2 GetInputRange()
     {
         if(Input.touchCount < 2)
            return Vector2.zero;
      
         Touch touch1 = Input.GetTouch(0);
         Touch touch2 = Input.GetTouch(1);
      
         var midpoint = GetMidpoint(touch1, touch2);
      
         if(IsBegun(touch1, touch2))
              startPoint = midpoint;
          
         return startPoint;
  }

I'd be grateful if someone could land a hand. Thank you :)