Marriage & Children Life Plan

My boyfriend and I are 25. My life plan was that I would marry by the time I'm 28 and have a child/children before I'm 30. Yesterday I had a conversation with my boyfriend of 1 year about his life plan. He said he honestly sees himself married to me and wants to marry at 29/30 and then have our first child at 31-33. He wants to travel which I am totally up for but he wants to travel before we have children which is just after we get married. Is 31-35 too late for trying to get pregnant? Is my original life plan worth sticking to or do things change? Has anyone been in a similar situation and if yes then how have things planned out for you?