Starting to give up :(

My boyfriend of 4 years have been TTC for almost 1 year n 1/2 all his friends from his soccer team have kids a couple resently joined the team and she's already 3months pregnant and am starting to feel so alone and left out I want a baby but it seems like our dream is falling apart.. We're young he's 21 and am 20 and we want a family but we're slowly giving up.. Anyone else has this problem?