Hi Minimatron,
So glad you had an u/s. It is really too early to see a heartbeat. Obviously they could see no source of the bleed or they would have reported on it so this is all great news!
Hopefully you will get some more positive stories from all of the other wonderful women on Belly Belly who have had first trimester bleeding.

Try and relax (impossible I know!) think positive thoughts and count off the days until your next u/s. I am hoping for you that everything stays wonderful