I often feel this way too. But as I have gotten older, I'm 50 now, I have come to terms with the fact that I will never have children of my own. When I was in my late thirties I considered adoption but found that even doing that on my own would be too stressful. Perhaps if I had a higher income income and a larger family to help me it would have been doable. Besides that my frequent episodes of depression and my occasional inability to hold a steady job caused me to forget about having a child on my own. Lastly, it is very expensive to adopt a child unless you foster parent.

If you do consider adoption, please look at all of the challenges that go along with single parenting. It's a very hard job being a parent even with a spouse, and handling it alone is a major stressor in many people's lives. Some women do adopt and manage to be successful moms but for me it was just not possible.

Maybe you can find ways to be around children even if they are not your own. I work as a nanny because I get to take care of children and get paid for it. I also do volunteer work with kids. Remember that your life can still be fulfilling even if you are not a parent.