Ah, getting older is the bane of a lot of women's lives, but you must not pressure yourself into a new direction in life just because the years are stacking up against you.  I've heard this time and time again from friends in their late 30s who have yet to start a family, let alone meet the so-called Mr. Right.  Some people seem to get to this fork in the road where it's "now or never" and if they don't make a drastic change in their life, then things will never progress any other way. It's unfortunate that society (and sometimes our mothers) put pressure on us to stay young, have kids, marry by a certain age and have a great career.  Sometimes we're just not sure how we're supposed to feel, and that can be extremely frustrating as well as overwhelming.  Confusion and insecurity should ideally be left in our 20s but sadly, that's rarely the case.  

You must examine your life as it stands now and determine what your priorities are. Not five years from now but right now.  Planning ahead in some cases is important but assuming you'll want a child in five years, and therefore possibly rearranging your life to accommodate that, seems a tad dangerous to me.  If your only priority now is work, what makes you so sure that will change within the childbearing years you might have left? 
 
Although it can be a struggle, working women can have it all - if it's something they truly desire. But it takes a lot of work.  If you look to Hollywood, many women somehow find the time to have full families and booming careers  - just take a look at the Jolie-Pitts.  But remember, you are not Angelina Jolie, and you probably cannot afford to have multiple handlers and nannies with you 24/7.  (Yes, they get a lot of assistance, despite what you see in pictures.)  And if you're single, everything you do will seem twice as challenging. 

Some women get to a point where they just don't think they'll ever meet Mr. Right, but desperately want to be a mom.  With so many children in orphanages around the world, adoption is becoming a viable alternative to the natural method of having children.  Many women adopt because they just expect to fall in love with the child and with being a parent. It's taboo to talk about, but many women find motherhood tough to digest. Some women never adjust. Big decisions call for a lot of soul-searching.  Just make sure that in the end, age notwithstanding, you do what is right for you right now.  You don't want to look back with regret.  Whether you're 27, 37 or 47, if you feel young and don't want the heavy responsibility of a family, then you should probably just stay on your current path. So, whatever your choice, be certain of it.  No one can make that decision for you.  If there were ever a time to trust your gut, this is it.