Pregnant and unwed

I've been active in church and one that many have looked up to for majority of my life. I'm currently in my mid-twenties and expecting my first child with my boyfriend. We've been together for 2 years and planned to get married after completing school but now (since I'm pregnant) my pastor/parent believes the marriage should be expedited for the sake of my own morality and sanity. However, we both feel "pressured," because it doesn't allow much time or finances for us to have the wedding not to mention proposal that we both feel as though we deserve. Though we love each other and have great growth potential, I don't want to look back on it and regret how or why we got married...What should we do?