Advice!!

My bf and I have been together for 6 years and we want to move in together.. we know marriage is what we want but not now because we don't want to rush it since we're only 21/22 and we're broke and in college still and whatnot. My mom insists we get married first but I disagree, so, <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> ladies (& maybe men) ..is this a good idea?