Hi welcome to H.C,M.Forum. inevitble abortion
means it should be evacuated. with medicines usually it is not completely evacuated. lead to continuous bleeding & infection. the second doctor gave you anti biotics but it appears they are not effective to that infection.
i advise you to consult a gynaecologist for diagnosis & treatment. if necessory she may evacuate the remnants. anaemia
also is one of the causes of miscarriage
& prolonged bleeding. for this also doctor will give treatment. besides i advise you to eat more of green leafy vegetables, cereals,fruits,& juices for early recovery. wishing for an early recovery.