What is it you like about being childfree at the moment?
If you're big into travelling (not right now, I know), then having a child will change that. If you like going out to concerts, plays, meals and to the cinema, then having a child will change that. How much would you miss it?
If you like your family unit, exploring the countryside together, gathering with friends and family... then having an extra family member will change that but a child can be included and enjoy all these activities too!
How comfortable are you financially? Will having a child change things from being able to afford small luxuries, like M&S food, staying in hotels for holidays and getting the odd taxi to having to be more careful? If so, it might be a big adjustment. Would you mind?
If having a child won't radically change your standard of living, then the adjustment will be much easier.
I'm pregnant with my first at 39 and whilst I've always wanted children and super happy, I have found the mental adjustment harder than I'd anticipated. The idea of not being able to travel freely, needing to watch spending just like when I was younger and also know that my career progression is bound to slow / stop isn't that easy to process.