Biological Clock, Are You Real?!

It's scary, sometimes depressing and exciting (yeah, that many emotions...) when you see so many of your friends around you settling down and having babies, buying houses and having this great little family life. I am going to be 30 next year and I think I might be having a little bit of a panic attack about this elusive "biological clock" everyone talks about. I told my parents several years ago that I did not plan on having children and probably would not get married. They were not surprised and my mom said it was fine, she had plenty of grandchildren:) I thought I was in the clear! But, I have recently discovered that if I am going to have a child, I should probably at least think about the possibility over the next few years. I am terrified that I am even thinking this because it has never been what I wanted and maybe still don't want, but I have to give these thoughts a reasonable amount of weight and examine what I really feel, right?  I just feel like maybe my career and living on my own is not enough anymore? When do you decide to move on up to the big leagues? I know this is only something I can answer myself, but I am just putting it out there in the universe. I have friends that have the same thoughts as me, no marriage, no kids and I feel like I am betraying my own thoughts by considering a life I never wanted to dream about. Here is my question: Is the biological clock real or am I just an over-analytical, sensitive freak who needs to have a reality check? I think it is probably the latter. I love all my friends (and sisters) with little munchkins and adorable families that are kicking ass at being a mom and wife, props to you! But, is that really what I want?!