Saw baby and heart flicker via vaginal ultrasound at 9:30 pm at hospital due to light spotting via vaginal ultrasound. Started bleeding a lot at 10pm- 9am next morning no bad cramping but had pin head size clots. Can a miscarriage happen that quickly! I am so confused. My doctor said everything looked good from the hospital notes but I’m just so confused why I bled so much! They are saying because of the ultrasound but this was like a full on period in a matter of hours. No blood since. I’m 6 weeks.