Anyone else?

Don't mean to bring up any bad experiences, but this is my first miscarriage I've had and not really sure what to expect. I found out I was pregnant 1/9/2016. Was very early. Went in to Dr's for blood work and ultrasound, hcg was 73 and progesterone was 9.92. That was on a Thursday. Ultrasound didn't show anything they said would have been too early. Last Monday checked levels and went to 67, they wanted me to come back few days and try again . Found out results next day on a Tuesday, later that day had some bleeding and went to ER. They took more blood and levels had went to 53 and they confirmed I was miscarrying. Next day dr checked levels and was at forty something. Fast forward to yesterday Monday, went for more blood work and levels are at 23. I've been bleeding and passing clots over a week now. When will the bleeding stop and when will levels be at 0?