Hey, try not to worry as you will find everything to be okay.
I went though the similar think and I was told not to worry as it can't be heard till at least 8 - 10 weeks why normal scan come out when the women are around 12wks? Where are you from? Hope this help you. Xx
Do you have a regular ob-gyn you can go to? ERs are really not that well set up to provide prenatal care.
I always heard mine around 10 weeks try not to worry and stay positive:)