London/IBNS: Kate, Britain's Princess of Wales, has said she is making good progress as she is undergoing preventative chemotherapy but is "not out of the woods" ahead of her first public appearance on Saturday since her surgery revealed cancer.

In a personal written message released on Friday by the Kensington Royal on X, Kate said she had been "blown away" by the thousands of kind messages from across the globe following her cancer announcement in March.

She said they had made a world of difference to her and her husband, heir-to-the-throne Prince William.

"I have been blown away by all the kind messages of support and encouragement over the last couple of months. It really has made the world of difference to William and me and has helped us both through some of the harder times," her message read.

"I am making good progress, but as anyone going through chemotherapy will know, there are good days and bad days. On those bad days you feel weak, tired and you have to give in to your body resting. But on the good days, when you feel stronger, you want to make the most of feeling well," Kate said.

The Princess informed that her treatment is ongoing and will be for a few more months.

"On the days I feel well enough, it is a joy to engage with school life, spend personal time on the things that give me energy and positivity, as well as starting to do a little work from home," she said.

Kate is also looking forward to attending The King’s Birthday Parade this weekend with the family and is hoping "to join a few public engagements over the summer."

"I am learning how to be patient, especially with uncertainty. Taking each day as it comes, listening to my body, and allowing myself to take this much needed time to heal.

"Thank you so much for your continued understanding, and to all of you who have so bravely shared your stories with me," she ended her note.

Her illness has coincided with that of Charles, 75, who has also been undergoing treatment for cancer.

King Charles returned to public duties in April, and has remained busy, although limiting his commitments to minimise risks to his recovery.