Edging question

So I been trying to practice edging and have this problem. Right before I ejaculate I try to stop it by clutching BC muscle, often it’s during the process of ejaculation but what happens is that I cum but nothing comes out even though I feel the semen rushing in my penis.

What should I do, and is that dangerous?

The goal of edging is not to go over the edge, so you have gone too far. There isn’t any problem in holding back ejaculate, your body will absorb it, but next time avoid the issue altogether by stopping your stimulation a little sooner. :)

I’m just wandering wat is edging? Could you give me a link to a discription or just explain the basics please. I’m also wandering wat ballooning is

Here’s a link