Christine,

It's good that the ultrasound ruled out ectopic - did they definitely say that? If so, then you don't have to worry about it.

If the pain isn't increasing that is probably a good sign too but it isn't good that you have this pain that's unexplained because it's worrying for you. Maybe go back and chat to your doctor and see if he/she can give you an answer about what else it might be.

Sorry I'm not much help, but I think your doctor needs to have another look at you just to set your mind at ease.

Mel