Really crap weekend!

I was six and a half weeks pregnant. I spent most of my weekend back and forth to the hospital and they told me it just looks like old blood and there should not be anything to worry about. They booked me in for a scan on Tuesday and they told me that's all they could do. I got so anxious that my mother in law booked me in for a private scan and she the lady told me my uterus was empty and it is highly lightly that I have miscarried unless my dates are wrong. I know my dates are right so I am devastated.