First visit, bad news

Crystal
Just got back from my first appointment.  I'm 7 weeks and 2 days.  The baby's heartbeat was only around 60bpm and is measuring smaller that it should be.  They also discovered that I have a growth (fiberous?) on my uterus that is quite large.  She said it also looks like I have some clotting in my uterus.  I go back in 2 weeks, but the doctor said that it will likely end in miscarriage.  
Has anyone else been through this?  Advice?