Bei Chuan Yun Shang Jin
Mu Yuchen as told her that one child is enough for them multiple times. He has clearly stated that they don't need another child, but Xiaye keeps insisting. He also said that she won't be able to handle the truth, if she finds out that it'll be hard to conceive another child, so yeah, he's thinking about her health.
EmmB:I get that but... who would like to be lied to over and over and given even a small hope of another child when u know its not possible?