Subchorionic Hemorrhage growing!!

Brittany
So I had my follow up ultrasound today for my SCH. However, it has gotten bigger (about 7 or 8 cm long) This is my second pregnancy and with my daughter I didn't get the first trimester screening, although my doctor recommended getting the testing. She told me that in some cases a growth of a SCH could be caused by down syndrome. I'm now completely worried about this issue and wondering if anyone has ever had a similar issue. Especially since my testing can only be done on Jan. 3rd because of the holidays. Any help would be greatly appreciated!!