Low factor 8

I have been trying to get a diagnosis for a while now and I have just been told that my factor viii is low (41 apparently it should be between 50 - 150). I have only been told that they are going to retest and then I will see a haematologist as I have a bleeding disorder.

I thought it was Von WIllebrand that I have, but apparently, my VW factor is fine. Could it still be Von Willebrands? What else could it be if not? The only other thing I can see with a low factor viii is haemaphilia, and although I know that women can have it it is extremely rare so I assume it is not that.