It first aired on the NBC network in the United States on September 26, 2002.
[1] At the end of season eight, hours after giving birth to her and Ross's daughter Emma, Rachel accidentally thinks Joey proposed to her, and says yes.
Joey leaves and Ross tries to see if he can start things up again with Rachel.
Then he sees that Rachel is wearing the ring and asks her if she said yes when she thought Joey proposed.
When he proceeds to show them sex moves that guarantee conception, the couple are visibly freaked out.