Medical abortion side effects. Abortion?

I had done medical abortion under the observation of doctor and bleeding started on 5th July 2019 and is still continuing. My Pelvic Sonography report shows that the uterus has been cleared. And report also shows there is a simple cyst in the right ovary. As my bleeding is still heavy and haemoglobin level has gone down due to blood loss, my doctor had prescribd me Duoluton L which I continued for 21 days starting from 6th July 2019. Now aftr stopping Duoluton L aftr 21 days i.e., on 26th July my bleeding strted agn & doctor said it was my first periods aftr Mtp. But it's been more than 10 days I am bleeding heavy and my periods is not stopping and so I consulted my doctor again. Nd now she has asked me to take Duoluton L again for another 21 days. I am worried abt, is this heavy bleeding thing will ever stop naturally. I mean how will I survive if I stop medicine and get heavy periods every month. I wnt to knw why is my bleeding not stopping even aftr more thn 8 weeks of abortion??