Saw baby but still nervous

Yesterday I was having some light brown spotting then it went away. We had an ultrasound today and baby is progressing but they didn't have sound so we weren't able to hear the heartbeat. I told the tech about the spotting but she basically just said she's not my Dr so can't really tell me anything. After the vaginal US there was a lot of brown discharge when I wiped but no more after that. My Dr is suppose to call me today with the results. I'm so glad we were able to see baby but of course can't help but worry still.

Btw I'm 9 wk 5 days