I had one between weeks 5 to 7. It ended up just bleeding out and healing itself, never had bleeding again after that. I know it's terrifying but as far as I was told there's no harm to the baby. Maybe yours is a larger size because there's twins? Mine was only 1.1 cm at my 7 week scan.
i had one from 7 weeks to 18 weeks i am now 33+4
I've been through it! I was diagnosed with a sch at 6 weeks! I know exactly how you feel! Luckily mine reabsorded/ or bleed it out, and I now longer have it! I'm now 21+3 with a baby boy! Stay positive! Relax and don't stress! You know how big your clot is?
I had the same thing from 5wks until I was 7wks I was bleeding bad an thought I was having a miscarriage but everything turned out fine the bleeding stopped after two weeks an I am now 21w5d with a baby girl so take take it easy an get a lot of rest dnt lift anything heavy btw mine was a %75 sub-chorionic bleed so just take it easy btw congratulations (: