The Thorn Birds Episode 18

After Jung Eun explained about how she started living as Myung Ja's daughter and how Han Byul became her son, both Young Jo and Jung Eun spend the first night together. Kang Woo warned Young Jo after knowing that Yoo Kyung is seeking revenge on Choi Jong Dal. In order for Young Jo to stop Yoo Kyung and protect Jung Eun, he must return of Heaju Group. During a delivery scene, Jung Eun felt uncertain about her non biological son, Han Byul. Yoo Kyung took care of Han Byul, who was brought by the crew. She felt responsibility and love of being a mother. Upon knowing, Young Jo and Myung Ja came rushing to the scene. Han Byul's body is feeling unusual, so collection of blood is required from parents. Yoo Kyung opens up to tell that she is the mother. (Source: Viu)