Daphne realizes that Simon’s claim that he "cannot" have children is actually a choice—a vow he made to his dying father to end the Basset line. This leads to a major confrontation where Daphne feels deeply betrayed by Simon's deception.
Marina’s pregnancy is exposed to the public through Lady Whistledown's pamphlet. Bridgerton s01e06
The blissful atmosphere shatters as Daphne begins to question the mechanics of their marriage. Having been kept in the dark about sex and reproduction by her mother, she eventually learns from her maid, Rose, the truth about how babies are actually conceived. Daphne realizes that Simon’s claim that he "cannot"