I think they are similar because they both have to do with dissaproving parents and teenage preganancy, in WCDBS it mostly focuses with what goes on around the family, friends, neighbors, and not just the couple. Also in WCSBS focuses on what happens 12 years later when the couple meets and everyone has a reunion (12 years reunion). In HTG also focuses on the family’s reaction towards the couples pregnancy and how disapproving they are and what sacrafises they have to make, i think u will enjoy either of them if u haven’t watched either of them ENJOY!