I suspect what you actually mean is: you don't want kids *right now*, which is sensible.
Flora, how old are you? This is not intended to be an insult. Unless you are over 30, it is too soon for you to decide you do not want children.
Too many women (and men) change their minds about this subject for me to take your comment in any way seriously. Still it sounds like the risk is minimal. So, just make sure you've done your homework for what might happen in future. Good luck with everything.
Second thoughts can generally be amended with judicious action; injudicious actions can seldom be recovered with second thoughts.
--Cyteen by C.J.Cherryh