Collision problem when spawning in the collider

Hi! I'm experiencing some problems with collision detection.

I have t$$anonymous$$s code to detect whether or not my gameobject collides with other objects or not:

 public int collisionCount=0;
 
 void  OnTriggerEnter2D (Collider2D $$anonymous$$t){
         if ($$anonymous$$t.collider2D.tag=="obj") {
             collisionCount++;
             Debug.Log ("collision++");
         }
     }
     
     void  OnTriggerExit2D (Collider2D $$anonymous$$t){
         if ($$anonymous$$t.collider2D.tag=="obj") {
             collisionCount--;
             Debug.Log ("collision--");
         }
     }

So t$$anonymous$$s way when collisionCount=0 I know that my gameobject doesn't collide with any gameobject with tag "obj". And it works! But when I spawn a gameobject with tag "obj" directly in the collider of my main gameobject the script doesn't detect the collisionEnter2d, but when the "obj" falls out of the collider the collisionExit2d works, so the the collisioncount is =-1 instead of 0.

How can I fix t$$anonymous$$s? Thanks in advance! ;)