It could be different in the states then Canada, but i went to emergency at 5.5 weeks and 12.5 weeks with spotting (my dr's office was closed) both times they did a ultrasound and blood work to check my hcg levels. I would say go to emerg with that kind of bleeding, it could be something serious.
i hope this turns out ok. the er can do a hcg check if she cant get into her doc. Like the others said that much blood is not normal. Im sorry she is going through this and hope for the best. Good luck