Low hcg

Lauren • Nz Mamma of 2 girls Earthside and 4 👼. Due July 7 2020 with hopefully baby #3

Has anyone had low hcg 13dpo my hcg this morning was only 13. I’m worried im going to miscarry again. I’ve got plenty of symptoms and been having positive tests since 11dpo so I thought my hcg would of been higher than 13 :(