Shelter dogs and babies

My husband and I are looking into adopting another dog. We currently have a GSD who just turned 2 and we’re ready for another one preferably a pitty. We also have a 6 month old baby so I just want to Ask if you think we should trust adopting a shelter dog with a baby? :/ even if the shelter says they’re good with kids would you trust it? how should we go about introducing? M