Miscarriage scare! Any similar stories

Julie
Last night I experienced brown colored bleeding. I am 6 weeks 5 days. Of course I freaked out and went to the emergency room. My hcg level was above 7,000 and they did an ultrasound which showed the heartbeat and that the babies growth was progressing in track. Has anyone else had bleeding in the first trimester and carried to term? I am trying to be hopeful but it's so discouraging. This is my first pregnancy. Thanks for any feedback!