Why I'm still bleeding, tablets not work

Hi I'm completed 79 days of C section and tubectomy and I'm breast feeding mother and I'm still bleeding. My doctor suggested me to take a scan in that my endometrial Wall is 4mm.my uterus in size 78*40*48mm,three well defined hypoechoic lessions of 18*18mm,16*16mm,8*8mm seen in anterior myometrium of funds of uterus, the larger one showing calcific rim_S/o fibroid.my ovaries RO_42*16mm,LO_36*16mm. Scan report impression is there fibroids in funds and body of uterus, the larger one showing calcific degeneration. My doctor suggested me to take a depo provera injection for one time to stop my bleeding but no use still I'm bleeding. My doctor suggested me to take a various types of tablets 1.meprate,2 pause mf, 3 tranexa, 4 gestocare tablets, and finally she gave me a vitamin K injection also but no use and again she gave me a Rezone S injection twice a day for 3 days but no use still I'm bleeding. I don't know why I'm bleeding why tablets and injections not working for me Pls tell stop