Bleeding after WLE

Hi, I had my WLE yesterday on my right breast at 1pm and came home with dressing which had a small amount of blood on it at 6pm.. I am concerned that the dressing is now soaked in blood (still contained in dressing). As it is Saturday I am not sure who I would contact to have this checked. Or is this ok to leave? 

Anyone with any experience of this?

Thanks Carole