if else statement doesnt work

Hello, my endGame function doesn't work properly, if(myCounter > 3){ chooses the wrong level to load. Does anyone know why that is the case?

 var myCounter : float;
 
 function Update () {
     Debug.Log (myCounter);
 }
 
 
 function Start () {
     endGame ();
 }
 
 
 function OnTriggerEnter ( other : Collider) {
     myCounter += 1.0;
 }
 
 function endGame (){    
     yield WaitForSeconds (15); 
        if(myCounter > 3){            
            Application.LoadLevel ("Level_01");
     } else  {
            Application.LoadLevel ("GameOverScreen");
     }
 }