Perhaps the wife sold her hair to help someone in need or to contribute to a charitable cause. Or maybe it was a sacrifice she made to support a loved one's dream.
One aspect of such fanfiction could be the relationship dynamic between Kate and Sawyer changing. They may become more protective of each other and start planning for a future together off the island. Their pregnancy could also be a source of hope for other survivors, symbolizing new life in a desolate situation.
In this fanfiction, perhaps Kate initially hides her pregnancy from Jack because she's afraid of how he'll react. But as time goes on, she starts to show signs that are hard to conceal. Jack finally figures it out when he catches her having a bout of morning sickness. He is initially shocked but then becomes very protective. They then have to face the reactions of the other survivors, some of whom are supportive while others are worried about the added burden.
Often, there could be themes related to relationships. For example, how Kate's pregnancy affects her relationship with other characters in the 'Lost' story. Maybe there are conflicts or newfound bonds that develop because of it. Another theme could be the fear and uncertainty that comes with the situation, considering the dangerous and mysterious setting of 'Lost'.
In this type of fanfiction, other characters on the island would surely have reactions. Some might be happy for them, while others could be jealous or worried about how a baby would change the group dynamics. Their pregnancy could also be a catalyst for the group to find a more stable living situation on the island.
It's not common in a traditional sense. However, in modern and more progressive fiction, it can be used to make a point about gender fluidity or a mother's open - mindedness. It goes against the typical gender roles we often see in stories, which is what makes it an interesting and unique plot device.
I'm not sure if there is such specific fanfiction available. Fanfiction can cover a wide range of themes and relationships within the 'Lost' universe, but this particular one might be a bit hard to find or might not be widely shared due to its rather explicit nature.
The plot could be that Kate's pregnancy is a result of a moment of hope and love they shared on the island. Jack is determined to keep her and the baby safe. He uses his medical skills to monitor Kate's health closely. The other survivors see this as a sign of new life and hope for their community on the island. However, there are also those who are jealous or worried that the baby will draw unwanted attention from the island's mysteries.
Kate Cox might be a name that is familiar within a particular group. For example, if it's in a small town, she could be known for her local business success, like opening a popular bakery or a unique store. Maybe she overcame some challenges in her personal or professional life, such as dealing with financial difficulties when starting her business but managed to turn it around through hard work and determination.