polycystic ovary syndrome
"My gynecologist put me on this for PCOS. I took it for two years. My periods are few, random and unpredictable. I didn't have regular bleeding at all. I had one or two periods a year on it. The periods were much less uncomfortable, and my PMS symptoms were a lower severity. 

Didn't help with my high insulin which is my big problem. Didn't help with my ridiculously bad adult acne big problem. It went back to before. For a short period, I think it decreased my acne by 10%. The only pro I can think of is that it dealt with my higher risk for developing endometrial cancer due to lining buildup from unopposed estrogen. 

If I miss a dose here or there, I have awful mood swings. 

I'm going to a new gynecologist because I need better management of my PCOS."