Lost my baby today.

I just miscarried our baby today. I was 7 weeks and 4 days. I went to the emergency room when I started spotting. By the time the doctor was able to see me, I was already seeing clots in the toilet and then I started heavily bleeding. I couldn't go through with a scan or a pelvic check, I was too emotional. But they took a blood test and my hcg was at 300 when it's supposed to be at over 2,000. I have to go back on Monday, but I didn't stick around to be told a reason for the miscarriage and now I'm thinking that I should have.. I don't know what a d&c is or if I was supposed to take pills. The miscarriage seems to be happening naturally and I don't know if that's a good or bad thing..