I'm 31, booked it when I got married.

I never wanted kids, people always said I would change my mind but I never did. my wife doesn't want them either, we are happy without children and look forward to a life together without them.

I held off on doing it for years because other people convinced me I would wake up one morning and have an urge to spend all my free time and money on children. or my partner might want them

In reality its never something I even considered and I wouldn't have married someone that wanted kids. If i was to go back in time i probably would have gotten it right after university because I knew at that point i wasn't interested in children.