Bill and Jen discuss their children and the meaning of their smiles.

Jen meets with a physical therapist about improving her muscle strength and mobility.

To celebrate her 40th birthday Jen thinks the family is going to Galveston for a beach vacation , but Bill has a big surprise planned for his unsuspecting wife.

Bill talks about being a working Dad and how it's changed his life. He also talks about the obligation associated with adopting children.

Jen takes her mom and daughter with her to the spa for a pedicure before the vow ceremony.

Will has been able to feed an elephant and a giraffe in the past few months. Bill remembers the time they met the elephant in Mumbai.

Bill takes Jen to a secret place in the hotel to propose for the second time. She said yes!

Bill and Jen show off their silly side, but also they talk about the moment they met and fell in love.

Bill hangs Will's growth chart in his room and Will tries to be a good helper, but as a four year old boy, he is easily distracted.

When it comes to cutting the cake Jen takes the lead in directing the procedure. Watch The Little Couple Tuesday's 10/9c.

Jen talks about telling Will and Zoey that Mommy is sick with cancer. Will understood that Mom was not feeling well, but might not understand what cancer really means.

The Klein family enjoys a fun ride on the carousel.

It's Easter and while Jen is doing rounds at the Hospital, Bill is at home teaching Will and Zoey the art of dyeing Eggs.

Bill gives an open and honest answer to his feelings about Jen being diagnosed with cancer.

Watch the moment that Jen found out from her doctor that she has beat cancer. Her heavy treatment paid off and her prognosis is excellent.

Life in "The Little Couple" household has changed dramatically since returning from India with second child, Zoey.

Watch the moment that Jen found out from her doctor that she has beat cancer. Her heavy treatment paid off and her prognosis is excellent.

Will the Pop Up Pee Pad Be a Success? Rock Tests It Out.

What a crazy, emotional year 2013 has been for the Kleins! Get all of Jen & Bill's best moments with Will in one moving and inspiring video!

Zoey loves animals so much she climbs into a cage during her visit to the Childrens Museum.

Zoey goes down the slide at the Childrens Museum with a little help from Jen.

The Little Couple family is in San Francisco, so Bill, Jen, Will, and Zoey all head to Fisherman's Wharf to see the sea lions and have some fun!

The dogs rock the runway for Bill's doggy fashion show to benefit local animal rescue centers and shelters.

Bill hangs Will's growth chart in his room and Will tries to be a good helper, but as a four year old boy, he is easily distracted.

Jen shows off her muscles in this push up challenge.

Will has been able to feed an elephant and a giraffe in the past few months. Bill remembers the time they met the elephant in Mumbai.

Bill and Jen meet with Dr. Boostanfar of the HRC Fertility Clinic to discuss their options in their pursuit of having a child.

Bill gets a special birthday surprise from Jen.

Jen meets with a physical therapist about improving her muscle strength and mobility.

Will & Zoey have a blast at Mt. Vernon playing the old fashion game of stick and hoop.

It's time for Bill to focus on the big doggie fashion show his pet store is presenting. Will the crowds turn out and will Bill and his team be able to pull off this ambitious undertaking?

Will and Bill check out some trains in Grand Central, while Bill's Mom, Jen, and Zoey do some window shopping.