Why Prince William Is Already a Great Dad If you've been keeping up on Kate Middleton's rough start to pregnancy, you're well aware of her struggles with hyperemesis gravidarum. But have you heard about what a supportive husband Wills has been? The prince canceled the majority of his weekend plans to be with his wife, attending just one gala benefiting his charity. There, he said, "I don't know why they call it morning sickness — they should call it all day and all night sickness."