Hcg levels ? 🧐 confusion

Alisson • Happily Married 💍👫 | Hayden M. 💙 | Haylee M.💖 | Ha’ani M. 💗

Soo i had a miscarriage june 2 my hcg was at 14 then june 3 it was at 8 so it went down & i was supposed to have a surgery july 2 and i didnt cause i found out i was pregnant my hcg was at 268 and my hcg yesterday was at 15,120 my doctor said im around 7-8 wks according to my hcg . But how can i be that if i had a miscarriage like 5 wks ago ? So confused 🤷🏻‍♀️ i don't understand what happened...