The possibility is that the dosage may not have been sufficient; sometimes combination pills work better in such circumstances. Sometimes you may not see the result until some amount of hormone build up is seen, like say, about ten days of treatment. Since you also have an endometrioma
, combination pills could work better for you. Also, you should get a complete hormonal
profile to get a better idea of what can work better for you. To see if there is any endometrial hyperplasia
, you can have a test biopsy
after excluding bleeding and clotting profile abnormalities. Hope this helps.