Hi, welcome.
You will find a lot of support here, and might even discover some advantages of being childfree that you hadn't thought of.
I discovered this blog a few months ago, and have gotten a lot out of it. There are tons of pages of stuff to read. I agree, it really does help to know you are not alone.
I'm 35, and getting married in the fall. I have never wanted kids, it just doesn't appeal to me. I also like peace and quiet, and having time to myself, too. The stress, chaos, and noise of raising kids would drive me nuts. I have a 7 year old nephew that constantly reminds me that I'm not cut out for parenting. I'm not putting myself down when I say that - I'm recognizing that based on my personality, it wouldn't be a good match.
You will find most of the people on this board are also really into animals, and seem to have really cool hobbies as well. There also seems to be an abundance of really smart women on this site, that have put a lot of thought into their childfree state.
The only ticking I ever hear comes from someone else's watch. I think it's important to follow your own instincts and passions.
While I enjoy being an aunt immensely, I am just not drawn to parenting.