Ladies need some help!!! TMI

Heather • Have 4 beautiful babies
So I found out I was pregnant Feb 2015 and the 9 which was just 2 days ago I went into the er and had miscarriage :( but now I'm super confused because when I had my 1st ever miscarriage back in Dec 2014 my hcg level was sky high and the doc new I miscarried from that... But this time I was about 7 weeks pregnant and my hcg level matched exactly where it should at 61,000 I lost some tissue and all doc also said there was nothing on ultrasound and that my cervix was only fingertip open but this was my 5 pregnancy 3 healthy babies and 2nd miscarriage... So now it's day 2 since miscarriage and I stopped bleeding and all last night... Anyone experience anything like this so confused just need some insight thanks ladies