abnormal uterine bleeding
"I was originally on Beyaz to treat an array of symptoms, mainly: acne, cramping, mood swings, vomiting upon arrival of period.  Beyaz was bad the first month and then I didn't really have any problems with it after the first month... except it DECIMATED MY SEX DRIVE!  
When my insurance unexpectedly stopped covering all birth controls I got the cheapest birth control available, TriNessa.  The first month was bad. On the white week I was fine but by the second week I was in pain all the time. 
However, I remembered that, I guess with my body, the first go-round with hormones is always the roughest.  I decided to stick it out another month and I'm so glad I did. No adverse side effects. And my sex drive is back."