I've been dealing with this issue since I was 29 and now I'm 45 it's changed to 'should I have had children?' but with the same level of obsession 😂I think the problem with anything you decide not to do is you will always wonder 'what if?'
I think once you get past 40, you become properly childless/free in the eyes of the world. Until then, you are just not yet a mother. And it can be lonely, as you will be in the minority. I've also found it hard to see the once-stressful toddlers become lovely young adults. I sometimes find the hobbies I once loved to be a bit meaningless.
I think my upset about it was a bit brought on by my dad becoming ill and the realisation that we will all get ill / old and die at some point (I'm a real ray of sunshine). Also, at any time in life, you can lose your freedom / independence through illness or injury and, at that point, family might give your life meaning and purpose.
It's so hard because you have (whatever you decide) the biggest decision you will make in your life and there are so many factors / emotions / other people's opinions.
I was really unhappy in my teens and especially my 20s and when I got to 29/30 and met people with kids and all they talked about was how hard it was, I thought no way would I want to go into another really hard situation . But my body was screaming at me to have a baby and there is so much pressure! There is nothing like feeling you are being pushed and railroaded into something to make you slam the drawbridge.
I do wonder if people's honesty about parenting is a factor in people's decision not to have kids. I will admit to feeling a bit bitter as I did feel like people had 'kept the good bits to themselves'.
I also have endometriosis that was causing me a lot of pain and could have caused problems ttc. I almost wish we had tried to find out either way!
I was also absolutely terrified of childbirth and didn't like the idea of pregnancy.
We weren't in the kind of financial position where the strains of parenting could have been smoothed over with money.
When I was in my late 30s we were so busy with other stuff, I actually kind of forgot about it but it has loomed back again now.
If I had the time over, I don't know what I would do.
I don't know if that is any help at all. It is maybe a good idea to work out what exactly it is that puts you off having kids and see if you can work through it.
Best of luck whatever you decide and remember that life can be tough and wonderful in all situations.