please answer my question I'm so confused...

Becky
Okay so I came to the hospital to get an ultrasound , but let me tell you before I started spotting brown and then it got bloody but not bright red it was more dark but no clots... I took 3 test and they all still came out saying pregnant I took 2 digital ones and one regular one and the lines on the regular one was still dark and strong ... But anyways I'm here at the hospital and they did the ultrasound about 30 mins ago and they seen nothing ? Can anyone tell me if they experienced this and still had a normal pregnancy? Supposably I'm 6 weeks and my original appointment is suppose to be September 27th which I'm suppose to be 8 weeks. Please help!!