Saving jump power/Pause controller

Hello, I've a little problem with getting back jump power after pausing game. I don't want to use Time.timescale for pausing my game so I'm setting my Player object to kinematic and setting his speed.x to 0 to prevent him from moving vertically. I want to continue on jumping when I pause game instead of starting to falling e.g. when I jump but I don't reach maximum point of my jump and I stop my game - after resume I'm falling down instead of ending my jump. Here is the code:

 protected override void OnPause()
 {
     rigidbody2d.isKinematic = true;
     speed.x = 0;
     
     PauseText.SetActive(true);
 }

 protected override void OnResume()
 {
     rigidbody2d.isKinematic = false;
     speed.x = 5;
     
     PauseText.SetActive(false);
 }