I think that they could have expanded more on if Shan Shan will ever get pregnant. From what I notice, it seems like she won't because Feng Teng says to her that no need to have kids right after marriage because and I quote "she is too young and should enjoy her self". Even when his sister asked about expanding the family after getting married he says that they won't have kids right after marriage because Shan Shan is too young. But when she asked if Shan Shan has healed he didn't answer. Then she asked again, can Shan Shan get pregnant he hesitated before saying yes, then he told his sister not to link his marriage to expanding the family line. He keeps using her age to answer why they won't have kids yet. Also it seems Shan Shan doesn't know anything about how well she is healing. What is the answer to this part of the drama?