triste y feliz

i just found out a friend I know. We're not close. I know her through mutal friends. She just got married and she having triplets. I'm happy for her.but I'm sad at the same time. Why? Cause I wish I have a baby I could call my own by now. I want my own kid to cry when I leave. I want my own kid to be happy to see me. My god son cries when I leave.  It's not the same. When you could say it's your own child.  I'm to sensitive when I hear about people having kids.