Oh! That beautifully captures my own thinking about this, and I've expanded on that over the years.
For instance, that desire and that decision aren't a guarantee that you will end up having biological children, nor that having them will bring you happiness. Barring medical or financial conditions, there are so many other reasons why one ends up not having them, a lot of them being circumstantial and outside of an individual's control e.g. who gets to cross your path, who becomes your partner, a cultural context, events affecting your family and so on.
That deep emotional and spiritual desire to live and love as a foundational directive, also pushes you to reflect, shape and reshape your personal story and your identity as you move through life. It sparks existential questions to which insights only come through time and the compounding of experience. This is a most deeply individual aspect of living.
In a way, that same desire isn't binary. It's not one or the either. It includes doubt and leaning back and forth between stances depending on one's circumstances and experience. Like a bell curve, some will feel deeply bereft if they remain childless, many will consider that a scenario with a worthwhile alternative for parenthood is just as valid an option to them, and some have a deep sated desire to remain child free.
Reflecting and reconsidering doesn't stop when one has become a parent either. Many will vocally state that parenthood - or remaining without children - was the best thing they did in life, but there are also those that deeply regret their choice. As culture, past and present, tends to emphasis the importance of having children and espouses the merits of parenthood, this is only discussed in a most apprehensive manner, which leads to misguided generalisations and dismissive tropes. This renders an important part of our human condition moot: that personal responsibility is inevitably bounded by constraints which are necessarily outside the control of an individual.
There are many ways to self-actualize that emotional and spiritual desire to live and love, and having and raising biological children is one of many possible pathways. And so, the framework of values and beliefs you've developed which underpins and drives your own personal narrative, doesn't necessarily apply to the lives of anyone else.