54, female, zero children, zero regrets. Screw society's expectations - got fixed at 40, wished I did it decades earlier. Never married either (see above), though have been in a happy monogamous heterosexual relationship for 12 years. Check this out:
[link to thebritgirl.com]

did I mention the joys of advanced education, world travel, freedom? There's plenty of kids needing love in the world when I get a hankerin' for little 'uns..