While growing up, I was always in the mindset of "I'll think about it when I'm old enough to do something about it."
Then I got old enough, and thought "Not right now, I have so much to do."
I had the attack of "baby crack" twice in my life - once when I was 28 and the next when I was 30, and both times ended within a week (the second time lasted two-and-a-half days).
I've never had the desire to have children. They are not part of my visions of my life, and never have been. I don't have a maternal instinct, and it's difficult to miss something you've never had, so it doesn't bother me as much as people think it should bother me. I had my tubes tied over a year ago.
Currently, I am experiencing pangs of "maybe I'm overthinking the whole thing and shouldn't have had the tubal", but that's just because I feel like I found The One, and he has his heart set on having his own children someday. So, he isn't The One for me. However, in the end, I don't regret having my tubal, as I've saved the soul of some kid from having me as a mother.