Blood results

Chelsea

Hey guys sorry I’m posting a lot but I’m so scared. So I had a MC in March levels weren’t going up. I missed my period took a test very very faint line waited two days took another same thing. This morning the line got darker I went to the doctor they did a UA and it was negative so they did a HCG blood test my level is 8 and they want to retest Monday. What does this mean?