I forgot to mention that I'm 10 wks.
I believe it would be your mucus plug depending on how far along you are!! Nothing to worry about. How far along are you?!
Since your so early it could be from the uterus stretching.. seems pretty normal unless it was heavy red bleeding... i think your at the e.r for nothing, honestly..
I was at the er last night for the same thing. I'm 7 weeks. It was nothing just your body shedding off the little blood that you should have had if you wouldn't have missed your period. It's nothing to worry about and they said it is very common. If it continues for days then I would have it checked out.