In the fourth season premiere, Miranda's single life becomes a comedy routine during an engagement party, Samantha is sweet on a handsome priest, and Carrie's 35th birthday party is a damp squib.

Whilst Carrie's insecurities are put to the test, Samantha has intimate photos taken so she can remember herself as a "hot chick". Meanwhile, Charlotte deals with a gynaecological problem.

Carrie begins dating a good-looking jazz-club owner, whilst Charlotte and Trey re-ignite their passion....all over Manhattan. Meanwhile, Samantha gets involved with a sexy artist.

Samantha shocks everyone with her latest relationship; Charlotte and Trey look to truly re-connect; and Miranda swears off carnal activities, only to get involved with....baked goods.

Whilst Carrie and Miranda are haunted by relationships of the past, Samantha enjoys some artificial support. Meanwhile, Charlotte's battle with her mother-in-law comes to a startling climax.

Samantha's experiment with novelty nipples wins her a man's affection. Meanwhile, Carrie's leap into the information age reunites her with Aidan, whilst Charlotte and Trey take the next step in their marriage.

Carrie and Aidan find themselves dealing with new distractions, whilst Samantha demands gender equality when it comes to below-the-belt grooming. Meanwhile, Charlotte must choose between work and family, and Miranda is sidelined by a back injury.

Carrie learns a valuable lesson after her computer crashes; Samantha searches for elusive sexual satisfaction; and Miranda's personal crisis leads everyone to see things in a new light.

Charlotte decides that truly loving Trey means at least trying to love his mother, whilst Miranda's prickly bedside manner turns out to be just what the doctor ordered for Steve. Meanwhile, out in the country, Carrie attempts to deal with Aidan's rustic side.

Carrie helps Aidan and Big learn to accept each other a bit more, while Miranda and Steve get closer than they've been in a long time. Meanwhile, Charlotte and Trey keep up the hard work of making a baby.

Samantha's obsession with accessories causes friction with an A-list client, whilst Carrie takes some grown-up steps with Aidan. Meanwhile, Charlotte and Trey discover the real reason behind their infertility, and Miranda is confronted by some life-altering news.

Miranda makes a surprising decision; Charlotte and Trey reach a turning point in their quest for parenthood; Carrie struggles to answer a very important question; and Samantha takes a spur-of-the-moment trip to get away from it all.

Carrie finds herself more cramped than cosy when Aidan moves in with her. Meanwhile, Samantha reveals surprising feelings for Richard, Trey gives Charlotte an unwanted gift, and Miranda learns who really controls a pregnant woman's body.

Miranda is embroiled in an unusual case of office politics, while Carrie worries about being able to settle down enough for Aidan. Meanwhile, Samantha fears she may have said too much to Richard, and Charlotte makes another painful marital decision.

Samantha's relationship with Richard has her considering monogamy, although he may not be feeling the same way. Carrie, on the other hand, is forced to face her fear of commitment.

Whilst Carrie deals with a serious financial challenge, Miranda and Steve grapple with the details of raising a baby. Meanwhile, Charlotte has a hard time letting go of Mrs MacDougal, and Samantha tries to get more than just pricey presents out of Richard.

Carrie begins her new job with "Vogue" magazine, but is shocked when she receives some editorial advice. Meanwhile, Charlotte convinces Miranda to have a baby shower, and Samantha employs an unconventional tactic to get what she needs from Richard.

In the season finale, Mr Big makes a move that leaves Carrie considering what might have been. Meanwhile, Samantha's relationship hits a snag, Charlotte begins dating again, and Miranda prepares for motherhood.