Thank you everyone for your responses.
Katie, they did rule out ectopic. They saw the baby, they said it was about 3mm big, but on the second scan they weren't exactly 100% if it was the baby they could see. Also, the bleeding is getting heavier, and is bright red now.
Beth, you must have been terrified! I'm glad someone has a positive story though, thank you. Did you have any pain though? Because this is really, really painful.