Kudos for showing restraint in a tough situation. I don't understand attacking a pregnant woman as not being attempted homicide though. Seems like one kick would be enough to warrant arrest, minors or not. Maybe you should contact the local DA and inquire about PA statutes. Press whatever charges you can and be certain to post a No Trespassing sign so you can charge that if they unwisely return; coupled with a restraining order that can force the cops hands. Me, I'd call the parents and put them on notice any more contact from their children will be grounds for litigation. Again, kudos for staying cool in a dicey situation especially considering the stresses you've been under lately.