Tell him or not

Okay so I'm a 20 year old female with no kids and me and my boyfriend have been together less a year and all my friends and some family are having kids and I just secretly want a baby of my own and I feel as though maybe I should tell my boyfriend of my feelings and what I want but im afraid of his response and if they said they agree what will my family and friends think of me since I'm almost done with school. Any suggestions on what I should do?