confused!!

Brenda

had a miscarriage back in June. I am now 5 weeks 3 days and went to the doctor on Tuesday and had blood work done. my levels were 8012 went back on Thursday and got the news that my levels have doubled. only thing is now like I have a little cramping and spotting. today while fiance was at work I actually pasted some tissue but not cramping. anyone else had this issue? what did you do?