Maternal Clock my ass!

I am thirty-something and very comfortable with being single, living in a condo, drinking red wine and sharing my deepest moments with my dog and cat...does that sound pathetic? When I was a little girl I thought that by age 24 I would be married with kids and live happily ever after. I keep thinking "Is there something wrong with me?" But then I make a mental checklist of my friends' lives and realize that most of them, some who are in long term relationships, are still hittn' the pubs, being reckless and sleeping until noon on weekends. This makes me feel a little more at ease. Yes I am getting older, but I still have soooo much to do before I "settle down". There is too much of this world to see and too much to do, and seems like as soon as you have children the seeing and doing becomes further out of reach. Maybe I feel this way because I have no desire to have children. Even when I was in a long term relationship, the thought of getting pregnant never crossed my mind. I can't explain what it is, but children, as much as they can be cute and funny, when I am around them they make me I sweat. I can barely watch my five year old niece eat because I think she is going to choke on her food...she is five and is way pass the stage of stuffing anything and everything into her mouth but I can't bear to be in the same room. When she wants to play Barbie, which I used to spend hours doing as a child, I can now only handle maybe 20min. This makes me wonder if my maternal clock has a faulty battery, because mine isn't ticking. I have a couple girlfriends with whom I keep in touch with (meaning a once a year birthday wish phone call) who have children and I can barely have a phone conversation with them because they are only half listening to me while the other half is them telling their kids to stop picking things off the floor, climbing on the furniture, blah, blah, blah. After I hung up the phone a shiver went down my spine, the kind you get when someone drags their nails over a chalk board...ughhhh! I feel terrible about this physical rejection of children but perhaps I have been put on this earth to help with the population control. I know, I know, everyone says these feelings will all change when I meet the "right guy", but what if I do and I still don't want any two foot nothings running around the house? Does that make me a horrible person?