The Whole Truth

During a potentially romantic evening, Jin brings up trying to have a baby...a conversation the two of them have clearly had before. Sun bristles, and the argument kills the romantic mood.

After feeling nauseated, Sun asks Sawyer for a pregnancy test. She eventualy goes to Kate for help and advice with the test. Jack then confirms the positive results for Sun.

After initially telling Sun and Jin that Sun could not become pregnant, Dr. Kim confesses to Sun that it is Jin who is infertile. When Sun finally tells Jin that she is indeed pregnant, she goes on to tell Jin the whole truth: that she is pregnant, he is infertile, but tht this is indeed his child. Jin accepts this, and considers her pregnancy a miracle.