Pondering if having kids while my boyfriend has cancer

Hi. My boyfriend (37) was diagnosed with cancer 2 years ago. He underwent surgery but it was not possible to remove the mass completely. He still has a residual, for which he is monitored every 3 months, and he is now undergoing an experimental treatment that prevents the tumor from growing. He is 100% fine at the moment and the treatment is working. Doctors say he will have to take this drug for as long as it works, and that, when it will stop being effective (it could be 1 month from now as it could be 20 years from now), he will have to undergo either radiotherapy or chemotherapy.

He has preserved his fertility and we have been given the option to go through IVF for free if we decide to have a baby (we live in Italy).

Doctors said his tumor is not aggressive, its one of the less lethal types, and that recovery is possible.

I am 35 and I want to go through social freezing, as at the moment we really don't know if we want to put a child into this collapsing world, with a sick parent on top of that. We both feel very selfish, but at the same time the idea of having our own family sounds so sweet that I am struggling giving it up..

I know I'm being selfish, that's why I'm trying to buy time and really convince myself not to, but at the same time I struggle to imagine a life without a family of our own.

Any advice? I would need someone else's perspective.

thanks a lot for your time