Is it time to say, "I do," AGAIN?

Didn't know where to post this. We just got married in June and it was small and quaint. There was my husband, my grandmother, my great grandmother, his mother, and myself. We want to renew our vows and have a huge to do but don't know if we should do it sooner then later. We wanted or I wanted to involve our kids but we've been having problems conceiving and don't know when that day will come. Should we do it on our second anniversary or past that? We also just moved closer to my dad so do we do it here or back home? Should it be done on an anniversary if so would it be weird on our second?