I've been bleeding mildly for 5 days. I was terrified so I went to the ER and they told me that they did see something in my uterus but my HCG was only about 500. I started bleeding a little heavier and passing class and then today I passed a piece of tissue. I got my blood checked again yesterday though and my HCG has risen to 1000. So was it the start of a miscarriage and then it finally happened today? Is there another reason for the bleeding and clotting and tissue passing? Has anybody had this happen but was still pregnant? This would be my sixth miscarriage and I'm terrified.