Help!!!!

Ok so i was late 9 days LMP was 7/11/15.. On 8/20/15 i started bleeding w/ intense pain. Had some blood clots bigger than usual.. Went to gyno on 8/21 she said possible miscarriage but did a quant.. I was devestated.. Got results 8/23 and hcg was at 9.. Went back on 8/25 and on 8/26 got results it went up to a 13.. Nurse said its a possibility that i could still b PG.. has this happen to any of yall? And whats the out come???