Just noticed this post, from what I understand from my doc its good that you don't have pain. I completely understand how you are feeling, its just horrible and so frustating as all we can do is wait!!
Good luck today, please let me know. It is surely also a good sign that they havent actually seen anything in the tube either to confirm it as an ectopic.
I have probably missed this from your earlier post but how many days past ovulation do you think you are? x