Dx subchorionic hematoma 3wks ago @8wks preg. fetal heart &growth normal. red bleeding/clotting turned brown. red blood+clots just returned. why? bad?

SCH: SCH (subchorionic hematomas) are very common findings in early pregnancy. The often cause bleeding. Although the rate of miscarriage is higher in most cases things turn out fine. It is a small blood collection behind the placenta. The blood is either reabsorbed or it drains out. Typically a follow up sonogram is done over the next few weeks to confirm.