At 22 FI and I decided we didn't care about marriage and wanted to start a family, so at 23 we had our daughter. A lot of people could not understand that it was a planned pregnancy because we were unmarried (gasp!), but it was worse because we look so young - when we bought our first house my neighbour asked if i'd be going to the new highschool. So I've definitely felt the judgement you're getting! Age is no guarantee that people are mature or that a marriage will work, so ignore what the jerks are saying!