It seems that you have some retained products of conception after a medical abortion
. This is common and you need to see your obstetrician who can check your uterus
if necessary and do the needfull. It is also possible that you might have an infection.
It is unlikely that much will be done in the A and E unless you develop something that requires immediate intervention. Unless you develop increased discharge, bleeding or any other symptoms which make you feel unwell it might be better to wait for your appointment.