Still spotting. Working for me pls tell!

Hi I'm completed 75 days of C section and tubectomy and I'm breast feeding mother and I'm still spotting My doctor suggested me to take a scan in that my endometrial Wall is 4mm.and I have 3 fibroids 18*18mm,16*16mm,8*8mm. In 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 bleeding.after using this injection I'm started spotting from last 20 days onwards I'm spotting and my doctor suggested me to take 3 types of tablets 1.meprate 2 pause mf, 3. tranexa tablets to stop spotting i use these 3 types of tablets but no use still I'm spotting. Again my doctor suggested me to take K Stat 500 tablet to stop spotting but no use From 5 days onwards I'm using K Stat 500 tablet but this tablet also not helping me Why my spotting not stopping what's the reason i don't know pls tell why I'm still spotting Why tablets are not working for me pls tell