Jenni and Roger head up north to visit Roger's family in Maine. Snooki and Jionni are putting their new baby knowledge to the test as they adjust to life as new parents.

Snooki gets jealous when JWoww makes a new friend at a cooking class; Snooki volunteers at a doggie day care; JWoww and Roger's relationship hits a rough patch.

Snooki and Jenni decide to have one last celebration before their lives become too serious.

Snooki and Jionni get into an argument on his birthday over a picture on Twitter. Meanwhile, JWoww and Roger consider the future of their relationship.

Snooki helps JWOWW prep for her daughter's arrival while Jionni warns Roger about the delivery. A worried Jenni goes into labor and quickly changes her tune on getting an epidural.

Jenni proves to Roger that she can handle the outdoors. Roger later reveals some private information. Snooki and Jionni are left exhausted while taking care of Lorenzo.

JWoww attempts to throw Roger hints that it's time for him to propose while Snooki is unable to cope with her pregnancy.

Snooki and Jenni have a couples' weekend with their "Jersey Shore" roommates.

Snooki & JWOWW are back to making memories with an all new season. Snooki & Jionni decide it's time to get their own place, while JWOWW & Roger consider couples' therapy to solve their relationship issues.

Snooki and Jionni throw a party for Lorenzo's first birthday; Roger wants to know where Jenni stands on marriage.

Snooki and JWoww surprise their significant others by taking them to a drag show. Also: Snooki and Jionni celebrate their engagement with their families; JWoww and Roger’s relationship troubles continue.

Snooki and JWoww try to salvage their relationships before it's too late. The Jersey Shore roommates help celebrate JWoww and Roger's engagement.

The ladies get a taste of motherhood when they care for two pretend babies. Later, Snooki finds out if she's having a boy or a girl.

The honeymoon is over! The aftermath of Girl's night out brings both couples to the verge of breaking up.

The girls try to relax with pre-natal yoga while Jionni is tormented by Lorenzo's "terrible twos". Snooki throws JWoww a surprise baby shower and serves up some disturbing cakes.

Snooki and Jionni are desperate to move into their new house before their daughter is born. JWoww and Janis throw Snooki a surprise sprinkle party right before Snooki goes into labor.

JWoww and Roger try to work through their problems as new parents. Snooki and Jionni have a garden war. JWoww throws Snooki a high tea bridal luncheon with the Joeys. Snooki has a fashion runway with her bridesmaids.

The ladies head to Cancun to party it up and enjoy some time in the sun. Snooki finds herself unable to let loose while pregnant, leading to a late night fight in a club.

JWOWW gets a mommy makeover and takes her family camping. Snooki and Jionni start decorating their house but can't move in until the house is finished.

Snooki ends up going into early labor. JWoww is embarrassed after her father tries to makes a pass at her friends at a family barbecue.

Jenni decides to introduce Roger to her mother. Jionni and Snooki spend some romantic time alone.

The girls' friendship is tested on their last night in Cancun. Later, JWoww and Roger's relationship hits another rough patch, while Snooki starts to question her engagement to Jionni.

JWoww and Roger get used to life as new parents. Snooki and Jionni plan an elaborate welcome home party for Meilani complete with a mariachi band.

The BFFs become neighbors, have nanny try-outs, and the boys head off to Daddy Boot Camp.

Snooki shows off her wedding gown to JWoww. Jionni's parents visit town while new parenthood starts to cause problems for JWOWW and Roger.

Roger plays some pranks on Jenni prior to his proposal.

A fight erupts over a bachelor party when Jionni and Roger come over.

Snooki and Jionni try to get their relationship back on track, and JWOWW considers introducing Roger to her mother.