Support groups for pregnant women with a baby who has medical condition

Hi I was just wondering if there were any support groups for pregnant women who are going to carry on with birth even after babies diagnoses. I’m 31wks 3 days and we just found out on Tuesday our baby boy has dandy walker syndrome they offered to terminate pregnancy but we want to give our baby a chance and it’s just been a really rough couple of days not knowing how bad he’s affected we would just like someone out there who understands us... thank you in advance