Provera, fermara, spironolactone

Hey everyone ! I was just wondering if anyone else experienced this . I started provera for 7 days took 4 days after that to get a period . Then I got on fermara cd 5-9 (cd 9 I started my other pill spironolactone ) and then on cd 20 I had a small spotting pink, then cd21 I had more pink spotting along with blood work that was 0.5 . My doctor wants me to go back on provera and stop the bleeding and do my cycle over again . Has anyone experienced spotting on cycle day 21 ?