I am in my late 40's. All of my girlfriends, ones who were friends in my 20's, all have kids. Some started back in their 20's, some didn't have their first until they were 40.
Each time, I hoped that they would be similar to my mother who was the first in her social circle to have kids. My mom maintained her solo social life after I was born....my friends...well times have changed. No longer do the kids become part of one's life, kids become the 'centre' of life. So one by one my solo social time with my gfs dwindled to almost nothing.
One gf became a sahm after the first. Her two kids are now 10 & 12. While as couples we see them several times a year, my gf and I have been out just the two of us, about 4 times in those 12 years!
I have learned to do many things on my own. I have also made new friends over the years. Unfortunately many of those are over 10yrs younger than me and starting to have kids too. But on the bright side, friends who had kids in their 20's are now starting to return as their kids go off to university.
You working with mainly women certainly doesn't help at all. I work in a male dominated industry so it's easy to avoid the kid talk. Guys just don't seem to talk about their kids so much. So you are going to have to try and hang out with the women who aren't as focused and learn to be okay doing your own thing. Read a book or go for a walk at lunchtime. Include the more 'cool' chicks so that you don't alienate yourself more than will happen naturally with you not being all kid centric. Away from office, get out there and look for new friends. Hobbies and any childfree networks will help (no kidding and others)
Good luck.
