the men or the women. They place a $100 bet on the outcome and Ross (David Schwimmer) puts together some questions and plays as host. Meanwhile, Phoebe learns that the doctor will implant five of Frank and Alice's embryos into her uterus, which only has a 25% chance of success. She offers to do this as many times as possible for them, but is concerned when the two reveal that they are paying $16,000, which is all of their savings, for the single IVF procedure, and is helpless to influence the results. The trivia game begins, with various facts about the characters being revealed such as Joey's space-cowboy imaginary friend (Maurice) and Rachel's actual favorite movie (Weekend at Bernie's). A nine-all score leads to a lightning round. Monica raises the stakes: If the women win, Joey and Chandler must give up their birds. Chandler rebuts by suggesting Rachel and Monica give up their apartment to them, which Monica immediately agrees to without consulting Rachel. The girls lose the lightning round because they cannot identify Chandler's job, and the boys win. As the four pack up their respective apartments—Rachel, in particular, displeased about having to switch—Phoebe returns home and takes a pregnancy test, though it is too soon for a result, so she sits in the apartment for several days waiting for another result. Later with packing complete, Rachel finally refuses to move as Frank and Alice come by with another pregnancy test. The boys and the girls begin to argue along with Ross, which is cut short when Phoebe emerges from the bathroom and joyfully announces she is pregnant, the mood turning to one of celebration. The tag scene shows Rachel and Monica horrified at having to deal with living in Chandler and Joey's cramped and dirty apartment, while the boys are content to live in the girls' large apartment. Production "The One with the Embryos" was co-written by Jill Condon and Amy Toomin and directed by Kevin S. Bright. In October 1997, Lisa Kudrow announced she and her husband Michel Stern were expecting their first child. When Marta Kauffman first learned of Kudrow's pregnancy, she was overjoyed and wanted to find a solution of incorporating it into the show without choosing to cover up. At the time of filming "The One with the Embryos" in December, Kudrow was four months pregnant and the writers discussed ways of narrating the