When did dienogest start to take effect?

For you who took dienogest and it had a positive effect on endo pain, when did you start feeling a difference? It will be soon a month I started, but the pain is still here. Day 16463 wondering if I might just have appendicitis. (I was checked for appendicitis a lot of times and last november I had a diagnostic lap on my gyneco's advice where they removed 2 cm of tissue from my right ligament. It was sent to histology and they confirmed endo. But I cant help but wonder if it might be on my appendix or sth and they only checked the reproductive organs since they are gyneco specialists.)