“The problem with it is that when we first found out about her cancer, various people were putting dates on about when she was due to come back.
“She was going to be back in late April, she’s going to be back for Trooping or back for whatever.
“We just don’t know when she is going to be back.”
The Princess of Wales was diagnosed with cancer earlier this year and has been undergoing preventative chemotherapy for it ever since.
In her latest update, Kate spoke about the course of her treatment and said it will be ongoing for a few more months. She said: “I am making good progress, but as anyone going through chemotherapy will know, there are good days and bad days.
The royal also revealed in her message that she may attend more events over the summer while bravely acknowledging she was “not out of the woods yet”.
