Carrie invites Big up to Aidan's country home to talk. Charlotte tries to discuss her and Trey's infertility problems. Miranda sleeps with Steve to cheer him up after he has one of his testicles removed. Samantha tries to get the PR position for hotelier Richard Wright.

Aidan proposes to Carrie. Charlotte discusses adoption with Trey, but hits a wall when Bunny finds out that the baby could be Chinese. Miranda tells Steve she's having his baby. Samantha starts sleeping with her boss, Richard Wright.

Carrie and Aidan have a huge fight over the clutter in her apartment after Aidan moves in. Charlotte and Trey have a huge fight when he brings home a cardboard baby as a gag gift. Miranda goes on a date despite being pregnant. Samantha finally gives in to Richard's romantic overtures.

Carrie finds time away from stay-at-home boy Aidan with a gay Aussie shoe distributor at the exclusive Bungalow 8. Charlotte and Trey separate permanently after their apartment is photographed in House & Garden. Miranda accidentally outs her co-worker after he tells the office gossip that she's pregnant. Samantha tells Richard she loves him while high on ecstasy.

Carrie freaks out about marrying Aidan. Charlotte takes tap classes, and has a meltdown during the "Tea for Two" number when she realizes she isn't ready to be alone after her divorce. Miranda must feign excitement when she learns her baby's sex. Samantha finds out Richard is seeing other women, and pushes him to be monogamous with her.

Carrie is forced to buy her apartment back from Aidan or move out. Mr. Big writes her a check as a loan, but she doesn't know whether she should accept it. Charlotte doesn't know what to do with her engagement ring. Miranda has to refurbish her wardrobe after gaining pregnancy weight. Samantha tries to trick Richard into saying he loves her.

Carrie starts working at Vogue and finds out from her acerbic editor that she doesn't have a Vogue idea about relationships. Charlotte throws a baby shower for Miranda, but Miranda gets fed up with her after she tries to make the shower too cutesy. Richard asks Samantha for a threesome with a 21-year-old for his birthday.

Carrie realizes her relationship with New York City is as dysfunctional as is her relationship with men. Charlotte decides she needs to distance herself from her former life as "Mrs. MacDougal". Miranda tries to adjust to her new life with her baby, Brady Hobbes. Samantha gets phone calls from Richard begging her to take him back.

Carrie gets an offer from a publisher who wants to make a book out of her column. Charlotte takes a self-help seminar and takes affirmations to try to find love again. Miranda agrees to have Brady baptized, and chooses Carrie as the godmother. Samantha takes Richard back, despite the girls advising against it.

Carrie desperately tries to get everyone together for Charlotte's "thirty-faux" birthday. Charlotte doesn't want to turn 36 because she feels she's getting old. Miranda goes to Atlantic City with the girls, feeling self-conscious about her weight. Samantha is paranoid that Richard is cheating with the entire female hotel staff.