Detect tap only if button was not pressed

This has most probably been asked heaps of times, but I'm not quite sure what to search.. A link to a thread would do just as fine as an answer.

So I have an iOS sorta game in development where you can tap to jump, but also can click on buttons to like pause, for example. When I click a button, it also jumps - and limiting the area which can be clicked on to jump isn't an ideal solution - so is there some way to check if a button was pressed on the tap - otherwise jump?

EDIT - Right now, jump is done by this:

 void Update ()
 {
     if ((Input.GetMouseButtonDown(0) || Input.GetKeyDown("space")) && grounded)
     {
         GetComponent<Rigidbody>().AddForce(new Vector3(0f, 250f, 0f));
         grounded = false;
     }
 }
 
     void OnCollisionStay (Collision other)
     {
         if (other.gameObject.tag == "Block")
         {
             grounded = true;
         }
     }
 
     void OnCollisionExit (Collision other)
     {
         if (other.gameObject.tag == "Block")
         {
             grounded = false;
         }
     }
 

(May have missed some syntax while I copied it)