Air date: 9/27/01

Monica and Chandler's wedding reception is almost upstaged by the news that someone may be pregnant. Phoebe suspects it's Rachel and comes up with a plan to cover for her friend.

The One with the Red Sweater

Air date: 10/4/01

Monica and Phoebe speculate about who might be the father of Rachel's baby. Mistakenly thinking Phoebe is the one who's pregnant, Joey makes a gallant gesture.

The One Where Rachel Tells Ross

Air date: 10/11/01

Everybody seems to know who the father of Rachel's baby is, except the guy himself: Ross. Phoebe and Joey fib about a gas leak to gain entry to Monica and Chandler's apartment.

The One with the Videotape

Air date: 10/18/01

Ross and Rachel's attempt to explain how they wound up getting pregnant turns into an argument over who came on to whom – until Ross makes the shocking announcement that he has the encounter on videotape.

The One with Rachel's Date

Air date: 10/25/01

Ross is horrified to learn that the pregnant Rachel is headed out on a date with a handsome actor, while Phoebe protests when Monica wants to fire a cute but clumsy sous-chef whom she fancies.

The One with the Halloween Party

Air date:11/1/01

At Monica's Halloween party, Phoebe meets her twin sister Ursula's fiance, and finds herself attracted to him as well.