looks like there might be a fistular connection between the uterus
and the bowels.
i would advise you to consult a physician and get a complete examination including a prctoscopy done to rule out the fistula.
as of your persistent bleeding looks like the product of conception are still in the uterine cavity
needing future evacualtion of the same.
in case the symptoms worsen call the emergency regarding the same.
i hope i have answered your query.
take care and contact at HCM in case of further query