How do I know if I miscarried

Hi I found out that I was pregnant I had not missed a period but 5 test showed positive had bad cramp went to the hospital had blood work done and it camed up positive now they think I have misscarried but still having blood work done how can I know for sure if I misscarried or not

Hi, please start at the beginning. How pregnant do you think you were, or were told? Did all 3 blood tests read positive? When did they say they think you miscarried? From ultrasound?

It is easy to miscarry and not know it, if early weeks. There is no way that I know of to know, except that you will release a thicker and higher volume of menstrual blood and tissue.