GameObject moving back and forth, moves slightly further left each time.

To explain better, the moving block gameobject will start at lets say X = 76. It will move left to X = 69. Then it will start to return towards X=76 but instead it will stop at around 75.9. Then it will move left to 68.9. So it will continuously move slightly more to the left with each pass. I don't want to use Mathf.PingPong.

 public class MovingBlock : MonoBehaviour
 {
 
     public bool inTrigger = false;
     private bool cR = true;
     public bool left, right, up, down;
     public float vel = 5;
     public float timeToMove;
     private bool currentPhase;
 
     void Update()
     {
         if (inTrigger == true)
         {
             if (cR == true)
             {
                 StartCoroutine(Move());
                 cR = false;
             }
             if(currentPhase == true)
             {
                 if (down == true)
                 {
                     transform.Translate(Vector2.down * Time.deltaTime * vel);
                 }
                 if (left == true)
                 {
                     transform.Translate(Vector2.left * Time.deltaTime * vel);
                 }
                 if (right == true)
                 {
                     transform.Translate(Vector2.right * Time.deltaTime * vel);
                 }
                 if (up == true)
                 {
                     transform.Translate(Vector2.up * Time.deltaTime * vel);
                 }
             }
             if(currentPhase == false)
             {
                 if (down == true)
                 {
                     transform.Translate(Vector2.up * Time.deltaTime * vel);
                 }
                 if (left == true)
                 {
                     transform.Translate(Vector2.right * Time.deltaTime * vel);
                 }
                 if (right == true)
                 {
                     transform.Translate(Vector2.left * Time.deltaTime * vel);
                 }
                 if (up == true)
                 {
                     transform.Translate(Vector2.down * Time.deltaTime * vel);
                 }
             }
         }
     }
 
     private IEnumerator Move()
     {
         currentPhase = true;
         yield return new WaitForSeconds(timeToMove);
         currentPhase = false;
         yield return new WaitForSeconds(timeToMove);
         cR = true;
     }
 
     void OnTriggerEnter(Collider other)
     {
         if (other.GetComponent<Collider>().tag == "Player")
         {
             inTrigger = true;
             cR = true;
         }
     }
 }