anyone similar?

pm

So yesterday I started spotting brown. Every time I wiped it was very consistent. So I called my OB and they immediately called me in for blood work and a viability ultra sound. When they did the ultra sound, which was internal, this is what they got

I'm measuring 6 weeks and 4 days but I'm worried because they said it was too early to see a fetal pull but I've seen so many on here where everyone could see theirs and there's usually a little white mark somewhere in the sack. Has anyone had something similar to this happen? I go back in a week for a check up.