My auntie took bed rest (except washroom) for 1.5 months. her son is over 2X yrs old la. perfectly normal.
but for the 2nd child, bleeding again, this time, my auntie did not take rest, baby gone. my auntie was sick (back/pelvis) for 7 years after the miscarriage.
myself, also bleeding, rest for 3 months. now bleeding stops.