 At the end of season five , Ross and Rachel <unk> get married while <unk> with their friends in Las Vegas . In season six , their annulment request is denied because of Rachel having leveled unfounded allegations against Ross , forcing the two to file for a divorce instead . In season seven , Ross and Rachel unwittingly conceive a child when their birth control fails . Rachel gives birth to a girl in season eight , naming the baby Emma Geller @-@ Green ; the name Emma is a gift from Monica , who had previously been reserving the name for her own child . Rachel and Ross live together as non @-@ romantic roommates during the first half of season nine . 
