GameObject is spawned twice

Hello guys, i'm having some trouble spawning my player on my 2D game. The isse is that when i try to spawn my player on a spawn point, my player is spawned twice. That means that my Spawn function is called twice, I can't figure out why is that happening.

Here's the code:

 using UnityEngine;
 using System.Collections;
 
 public class Respawn : MonoBehaviour {
 
     public GameObject character;
     public Transform ptoDeSpawn;
 
     // Use this for initialization
     void Start () {
 
         SaveCheckPoint (ptoDeSpawn.position.x,ptoDeSpawn.position.y,ptoDeSpawn.position.z);
 
         Vector3 pos = new Vector3 (PlayerPrefs.GetFloat("checkPointX"),PlayerPrefs.GetFloat("checkPointY"),PlayerPrefs.GetFloat("checkPointZ"));
 
         Spawn(character,pos);
 
     }
     
     // Update is called once per frame
     void Update () {
     
     }
 
 
     void SaveCheckPoint(float posX, float posY, float posZ){
 
         PlayerPrefs.SetFloat ("checkPointX", posX);
         PlayerPrefs.SetFloat ("checkPointY", posY);
         PlayerPrefs.SetFloat ("checkPointZ", posZ);
     }
 
     void Spawn(GameObject character, Vector3 pto){
         if (character) {
             GameObject p = Instantiate (character, pto, Quaternion.identity) as GameObject; 
             CamaraController cam = Camera.main.gameObject.GetComponent<CamaraController> ();
             cam.target = p.transform;
         } else {
             print("is null");
         }
 
 
     }
 }

Thanks!