Infinite Jumping Bug

While testing my game, I noticed that my jumping wouldn't end. I was wondering how I could fix this. Here's the script i'm using

Code (CSharp):

1.  
2. using System.Collections;
3. using System.Collections.Generic;
4. using UnityEngine;
5.  
6. public class PlayerController2D : MonoBehaviour {
7. Animator animator;
8. Rigidbody2D rb2d;
9. SpriteRenderer spriteRenderer;
10.  
11.  
12.  
13.     void Start() {
14.  
15.     animator = GetComponent<Animator>();
16.     rb2d = GetComponent<Rigidbody2D>();
17.     spriteRenderer = GetComponent<SpriteRenderer>();
18.  
19.  
20.      
21.     }
22.  
23.  
24.  
25.     private void FixedUpdate()
26.     {
27.  
28.        if(Input.GetKey("d") || Input.GetKey("right"))
29.        {
30.             rb2d.velocity = new Vector2(2, rb2d.velocity.y);
31.             animator.Play("Player Run");
32.        }
33.        else if(Input.GetKey("a") || Input.GetKey("left"))
34.        {
35.           rb2d.velocity = new Vector2(-2, rb2d.velocity.y);
36.        
37.           animator.Play("Player Run");
38.  
39.  
40.        }
41.        else
42.        {
43.         animator.Play("Player idle");
44.  
45.  
46.        }
47.  
48.        if(Input.GetKey("space"))
49.        {
50.             rb2d.velocity = new Vector2(rb2d.velocity.x, 3);
51.             animator.Play("Player Jump");
52.  
53.  
54.        }
55.    
56.     }
57.  
58.      
59. }
60.  

 

Did you mean to use GetKeyDown instead of GetKey for your jumping?