OP, I think you should make an effort to see a wider variety of people, because it sounds as if it is the unduly child-centric nature of your circle that is making you feel anomalous for not wanting a child, and socially pressured to think your own wishes are 'abnormal'.
I had my only child after almost 40 years of being happily childfree, and perhaps because of the fact that I've been childless for far longer than I've been a parent, I still identify unproblematically with those women who don't want children. I completely get why people make that choice, and think it's perfectly valid, and just as liable to lead to a fulfilled life, no question.
It's also the case that I've also always been surrounded by friends and family who have no children by choice - I'm the only one of four siblings to have had a child, and I have a lot of contentedly childfree friends, many of them gay and/or leading otherwise unconventional lives, so there's no presumption of 'marriage, mortgage plus 2.4 kids' as somehow the norm.
However, if you are seriously considering having a child because you want to, don't feel you should be desperately longing for one, or be 'naturally maternal', whatever that means, in order to 'qualify'. I have no interest in babies or children in general, any more than I have in 'people in general', spent a highly ambivalent pregnancy, and I remain the same ambitious, impatient, bookish person I was before I had my lovely son. Mothers come in as many different varieties as there are people. You won't become unrecognisable to yourself.