Help ! Period ? Positive test ? Miscarriage?

Okay so I thought I had my period the 12th -16th and I tested on the 8th it was negative . I tested on the 23rd and got a positive . I also got my blood drawn and my HCG was 465 . I’m so confused . Idk when I got pregnant , how far I am or anything . If I lost it or what . Imma try to call and get another HCG blood test .