Calling All Angels, Please Help Me...

My name is jade. On july 14th I found out from that i'm pregnant, approximately 4 weeks from my lmp. As of today, i'm suppose to be 8 weeks. A few days after I found out I was pregnant, I began to bleed. It went from pink, to bright red the next day, to brown the third day, which didn't even look like blood but a discharge. I admitted myself into er since I have no healthcare coverage, in which they took a pregnancy urine test that was a faint positive (same thing I was told when they did my very first preg test), a pelvic exam which determined my cervix was closed, and a blood test to check my hcg levels, which were low but considered normal for my length of pregnancy. I was suppose to follow up with an ob/gyn the following day, july 19th, in order to do another blood test to see if my levels fell, however I was starting a new job and unable to attend. The spotting continued on and off until july 27th, when I went to my annual exam appointment. I informed them of my pregnancy and symptoms, disclosing that the hospital I went to stated I am having a threatened miscarriage. They did a pelvic exam and my cervix was still closed. They took a sample of the discharge, which she stated had an order but I didn't smell anything. She stated they would schedule me for an ultrasound and blood test to test my hcg levels again and compare them with my previous ones. Unfortunately the ultrasound facility was not in the same location and completely too far for me, but I did do the blood test and have a follow-up appointment on august 13th to discuss the results. I'm very afraid, and my fiancee' already assumes i'm not pregnant anymore (he more so is just concerned). Yesterday morning, on august 2nd, I passed very small clots followed with minimal blood. The clots were like the size of a pin head, so I don't think it was a miscarriage because my child should be about the size of a cherry now, but who's to tell. I've read plenty of articles, and I think the clot was just old blood clotted together, or skin, but I kept it so I can show my ob. Has anyone went through this? Should I be overally concerned? I know no one can assure me of success, but atleast let me know it's not automatic failure...