While I can't say you'll be never change your mind, I'm someone who always said they'd never have kids and I never did. I did have moments where I thought "hey that might be nice!" after I met my current/now life partner but now I'm glad we decided not to.
Not only as a personal thing so we can just... live our own lives, sort ourselves out, explore creatively and do more together, but it's also a really big financial factor. Not to mention with the current climate and geopolitical situation, I can't guarantee I'd be bringing a kid into a world I thought worth bringing them into.
It's a big decision and if you can't swing it or don't think it's worth the sacrifices, stick to your guns.
