Can anyone give me some information on this , like if you have had one?? Have experienced heavy bleeding with large clots I thought FOR SURE that I miscarried! Hospital even told me I did! had an ultrasound done today and baby is 8w2d heartrate 168! They said I have a small subchronic hemmorage. I just want to know the harm it can do or if it is harmless? Or maybe hear others stories?