Bleeding with no pain

Kristen
I'm about 8 weeks and 1 day. My ob told me at 6 weeks there was no heart rate and this would most likely be my 4th miscarriage. She called back 2 hours later (after sending me for blood work) and stated she was wrong and that my HGC levels were "Doing what they are supposed to". 4 days later I had an ultrasound at her request, 2 days later I called to ask my results, the nurse told me to leave work and go immediately for blood work and the dr would call me. As I'm getting my blood work she calls and again says I'm more then likely miscarrying. As I head home I started bleeding heavily with no pain and went direct to the ER- no pain, no tearing no tissue. I've been bleeding on and off since then. Been to the ER twice since - my HGC levels are rising but yesterday I bled ALOT with clots for the entire day. ER (the last time I went may be 2 days ago) said as long as no pain I should be okay. They thought all of my ultrasounds looked good except the last one seemed to have an echo. I'm so worried that with the blood and clotting yesterday something is wrong (I did have a sub tonic hemotoma at 6 weeks)- it's like having my period but no pain at all and the blood seems to have turned to spotting. A lot of info I know- but any advice?!?! I have miscarried 3 times and been unable to conceive at all in 2 years - we want this baby so badly and I'm scared!!!