I don't think your problem is so much about how you feel yourself - it's worrying about other peoeples' reactions to how you feel that is your issue.
This is entirely down to self-confidence - and learning to care a lot less about what other people think about you.
Remember, we are equally entitled to our views and opinions, and just because you feel yours may not be the same as the majority, does not make it in any way less valuable or valid.
Everyone puts their knickers on one leg at a time - we are all making our way, and working out what is best for us - as you have clearly done.
All you have to do, is work out a strategy for how you deal with your insecurity.
i am sure family and close friends, the people whose opinions really matter, understand how you feel and respect your views.
Anyone else reallly doesn;t matter that much.
What you are finding is that people who are excited about babies are just that - excited. People who are not excited don't talk about it, so you feel as though everyone except you is broody and waiting to be a mother as soon as possible.
Next time the conversation comes up in company, ignore the gushing chatty women, and look for the quiet ones who are not saying anything. These are trhe women who feel as you do, so they have nothing to contribute to the conversation - and may, like you, feel isolated by their lack of input.
Get someone like that alone, bring up the subject of not wanting more children, and see the relief as she realises that she - like you - is not alone.
There are millions of women who never have or will feel broody, who have havd one or two children, and don't wish to have any more. Children are a gift, but they are not compulsory!
Be secure that you have made the right choice for you - if you don't have the approval of casual aquaintences, stop caring - agreeing with the