LEVELS HELP!!!

So I found out I was pregnant last night. I went this morning to have my beta hcg and progesterone drawn. I got the call that progesterone is 5.5 and beta hcg is 8.....8!!!! My nurse practitioner doesn't even know how I've gotten positive tests. But I have 5 faint but very clear positives HPT. With an 8 beta hcg? I'm so confused. Do my hcg levels correspond with my progesterone. Should I worry? I know I ovulated really late on my cycle, at least CD 21 but not 100% sure the day. I am like right at 4 weeks maybe less. I had a chemical miscarriage in January! I can't do this again! Anyone have any insight??