S1·E15 All's Well That Ends Well

Helena loves Bertram, but he's of noble birth, while she's just a doctor's daughter. But Bertram is at the court of the King of France, who is ill, and Helena has a remedy that cures him and wins her the right to marry Bertram. But he doesn't want to marry her, but is forced by the king. However, Bertram refuses to sleep with Helena and leaves for the Italian wars. He says that he will only accept Helena if she obtains a ring from his finger and becomes pregnant with his child!