As the Princess of Wales, Kate Middleton, undergoes preventative chemotherapy following her cancer diagnosis, her husband, Prince William, finds himself grappling with feelings of helplessness and fear while juggling his royal duties and caring for their young family. Insiders have revealed that the Prince of Wales is doing everything in his power to support his wife during this challenging period.

"William is trying to be there for Kate and helping in every way he can," a source told Us Weekly. "He's been doing schoolwork with the kids and spending time with them in the afternoons and evenings."

The couple's three children, Prince George, 10, Princess Charlotte, 8, and Prince Louis, 5, are aware of their mother's illness and her efforts to recover. "They know their mother is sick and is trying to get better," the source added, noting that William and Kate have been actively involved in every aspect of their children's lives, despite the assistance of their family nanny, Maria Teresa Turrion Borrallo, who has been with them since 2014.

On March 22, Kate surprised the world by returning to Instagram after months of speculation and conspiracy theories about her health and marriage. In a heartfelt message, she expressed her gratitude for the support and understanding she had received while recovering from surgery.

"In January, I underwent major abdominal surgery in London. At the time, it was thought that my condition was non-cancerous. The surgery was successful, however, tests after the operation found cancer had been present. My medical team therefore advised I should undergo preventive chemotherapy, and I am now in the early stages of that treatment," Kate revealed.

The Princess of Wales acknowledged the shock and difficulty the diagnosis had brought to her family, emphasizing the importance of explaining the situation to their children and reassuring them that she would be okay. "As I've said to them, I am well. Having William by my side is a great source of comfort, and the love and support and kindness that has been shown from so many of you. As a family, we need some time, space and privacy while I complete my treatment," she wrote.

A spokesperson for the Wales family shared that the couple was deeply touched by the public's response to Kate's condition. "The Prince and Princess are both enormously touched by the kind messages from people here in the U.K., across the Commonwealth and around the world in response to Her Royal ­Highness' message," they said.

The news of Kate's cancer diagnosis came as a shock to the royal couple, who were not prepared for such a revelation. "Kate was shocked when they found the cancer and in shock for a while after," a source told Us Weekly. "The day the family found out was the day William canceled going to the memorial of his godfather, King Constantine of Greece." The sudden cancellation on February 27 due to a "personal matter" had sparked heightened interest and speculation on social media.

As Kate focuses on her recovery, she has been working from home but remains uncertain about when she will feel ready to return to the public eye. "It's up to her when it comes to getting back in the public eye," the source said.

In her video message, Kate emphasized her determination to heal and grow stronger each day by focusing on her mind, body, and spirit. She also expressed her gratitude for William's unwavering support, describing him as "a great source of comfort and reassurance" during their 13-year marriage.

For Prince William, the situation is a delicate balancing act between supporting his wife, caring for their children, and managing his own emotions. The diagnosis has likely resurfaced the trauma of losing his mother, Princess Diana, at a young age, adding to the emotional toll of having both his father and wife battling cancer simultaneously. As the world watches, the Prince of Wales must navigate this challenging period while fulfilling his royal obligations and providing a stable foundation for his family.