mine was 自己流出 at home but as WongMing said, immediately after the miscarriage, i went to my doctor for check up and she determined that "everything" has been passed out therefore i did not need to 括宮.
應該係, but on the safe side, i think it's better to have another check up to confirm everything's ok... for my case, 1 mth after the miscarriage (the bb was passed out at week 8), i went back to my doctor for a final checkup....