Too scared to try again?

Hi, we’re very lucky that <a href="https://glowing.com/glow-fertility-program">ivf</a> worked first time for us and we have an almost 3 year old boy. The thing is I’m too scared to try again. I don’t actually know if I want to have another child but I’m also worried that it’s the fear of going through it all again that’s stopping us. I feel incredibly lucky to have my son. Has anyone else stopped at one child after <a href="https://glowing.com/glow-fertility-program">ivf</a>?