I'm not sure if you are trying to find a justification for a decision you've already made, or if you are still open about the decision, but just a suggestion:
You don't mention what your reasons are for leaning towards not having children, but from what I've read, a lot of people argue that it's a moral imperative to not have children on the idea of scarcity of resources. Interestingly, this Malthusian analysis seems to be historically wrong, it seems that the driving force of technological advancement and exchange of ideas actually far outweigh the scarcity of resources that comes with more people. It would be good to look at this https://www.nobelprize.org/prizes/economic-sciences/2018/press-release/ and there are youtube talks you can look up on this. Essentially the argument is that more people imply more ideas that can be combined to better the well being of humans, the planet, etc., and that these ideas can be combined in something like a factorial/exponential way, whereas the consumption of resources grows at a polynomial rate. So long story short, for considerations of the species' well being, or the planet's, it may actually be a better idea to procreate.
In any case, best of luck with your decision, whatever it may be!